In a rare moment of common ground with conservatives, longtime HBO host Bill Maher used his Friday night broadcast of “Real Time” to deliver a blunt message to immigrants who reject assimilation into American culture, declaring that acceptance of the nation’s foundational values is simply not up for debate.

Maher, who has spent decades positioning himself as a libertarian-leaning liberal often at odds with the modern progressive movement, closed his show with a “New Rule” segment centered entirely on immigration, an issue he called the most consequential fight in American electoral politics today. He wasted no time laying out his central thesis in plain terms, telling viewers that anyone who wants the American Dream has to accept American values along with it.

The comedian did not spare either political party in his critique. He accused former President Joe Biden of pursuing what he called a “policy of open doors” and accused President Trump of running a “policy of broken windows,” arguing that both approaches represented extremes that failed to serve the country well. Maher said he would prefer a return to what he described as America’s historic strength, namely drawing hardworking and talented immigrants from around the world and turning them into Americans.

What followed was a pointed and, at times, biting monologue aimed at a segment of newcomers Maher believes have abandoned the traditional immigrant mindset of embracing their new country. He argued that something has shifted in recent years, noting that while most immigrants still want to assimilate, a growing number now reject the concept of the American melting pot altogether, expecting the country to bend to them instead.

Maher did not mince words on this point, delivering one of the most quoted lines of the segment when he mocked that attitude directly, essentially telling those who reject the melting pot concept to get with the program or leave. The remark, delivered with his trademark comedic edge, quickly circulated across conservative media outlets as evidence that even a prominent liberal commentator has grown frustrated with what he sees as a breakdown in the assimilation process.

Despite the tough talk, Maher was careful to frame his position as pro-immigration rather than anti-immigrant. He made clear that newcomers are welcome to preserve elements of their heritage, telling his audience that immigrants can continue eating the food their grandparents cooked, speaking their native language at home, and celebrating their own religious holidays. What he insisted cannot be negotiated, in his view, are the country’s foundational civic and cultural principles.

Maher went on to specify exactly what he meant by those nonnegotiable values, listing support for gay rights, women’s equality, and free speech as core American principles that immigrants must accept regardless of their background. He was explicit in stating that these values are not, in his words, “White values,” but rather liberal democratic values that predate and transcend any single ethnic or racial group.

That distinction appeared to be a deliberate attempt by Maher to head off accusations that his argument was rooted in anything resembling racial or ethnic nationalism. He directly addressed the issue during the segment, stating that his concern had nothing to do with non-White Americans becoming a demographic majority and that his real worry was about liberal democratic values being displaced by illiberal ones, regardless of who is doing the displacing.

In a notable turn, Maher extended his same standard of nonnegotiable values to native-born Americans as well, taking direct aim at what he described as Christian nationalists on the political right.

He argued that the constitutional separation of church and state is just as nonnegotiable for longtime citizens seeking to reshape the country’s civic foundation as assimilation is for newcomers, an attempt to demonstrate ideological consistency, even as his comments were widely interpreted as a rebuke primarily aimed at the political left’s handling of immigration.

Maher also worked in his signature humor throughout the otherwise serious segment. At one point he joked that immigrants do not have to love everything about America, quipping that disappointment with certain aspects of the country is precisely why a review platform like Yelp was invented.

He followed with another lighthearted jab referencing immigration enforcement, suggesting that once someone successfully navigates encounters with Immigration and Customs Enforcement, they will find that America is, in his words, pretty cool.

The reaction from conservative commentators and outlets was swift and largely favorable. Several conservative leaning publications framed Maher’s comments as evidence that he is inching closer to positions long associated with the political right, with some going so far as to suggest he sounds increasingly like a Trump supporter on the specific issue of assimilation, even though Maher himself has been a frequent and vocal critic of the president on other matters.

This is not the first time in recent weeks that Maher has broken from progressive orthodoxy on his program. Just days earlier, he delivered a separate monologue sharply criticizing members of the Democratic Socialists of America, further fueling speculation among some observers that the veteran comedian is recalibrating his political commentary as the national conversation around immigration, socialism, and cultural identity continues to shift.

Not everyone was impressed by Maher’s framing, however. At least one academic pushed back publicly on his argument, with a public policy professor telling reporters that Maher had oversimplified the historical assimilation process.

The professor noted that earlier waves of immigrants, such as the Irish and Italians, eventually achieved acceptance in part by being racially categorized as White over time, a pathway that many of today’s immigrants, who come from different racial and ethnic backgrounds, do not have available to them in the same way.

That critique highlights an ongoing academic debate over whether comparisons between historical and contemporary immigration are fully applicable, given differences in how various immigrant groups have been perceived and treated throughout American history.

Still, Maher’s core argument, that a shared set of civic values must serve as the price of admission to American life, resonated strongly with many conservative viewers who have long argued for stronger assimilation expectations tied to immigration policy.

Maher illustrated his point with a comparison to international norms, noting that if he personally moved to Japan, he would not expect to show up and start demanding that the country change its customs and expectations to accommodate him. He argued the same basic principle should logically apply to those arriving in the United States, regardless of where they come from.

The segment arrives at a politically charged moment, with immigration continuing to dominate headlines nationwide amid the Trump administration’s aggressive enforcement posture, ongoing legal battles over Temporary Protected Status terminations, and heightened scrutiny of enclave communities in cities like Minneapolis. Maher’s comments, delivered from a platform not typically associated with immigration hardliners, add an unusual and notable voice to that broader national debate.

Supporters of stronger assimilation standards have long argued that a shared civic culture, rooted in the English language, constitutional principles, and a common set of values, is essential to national cohesion and long term social stability. Maher’s monologue, whatever his personal politics on other issues, effectively validated that argument in front of an audience that skews significantly more progressive than the typical conservative media consumer.

Whether Maher’s comments translate into any meaningful shift among his largely liberal viewership remains to be seen. Late night hosts rarely move policy needles on their own, but Maher’s willingness to say publicly what many conservatives have argued privately for years, that assimilation is not optional and that certain values simply are not up for negotiation, is likely to keep circulating in political commentary for some time.

For now, the segment stands as one more example of how thoroughly the immigration debate has scrambled traditional political alliances, with a self described libertarian leaning liberal delivering a message on cultural assimilation that would not sound out of place at a conservative policy conference.

As the national conversation around immigration policy continues to intensify heading into the fall, Maher’s blunt insistence that American values are nonnegotiable is likely to remain a reference point for commentators across the political spectrum, even as debate continues over exactly which values belong on that nonnegotiable list and who gets to decide.