There is no non-magical progressive theory for how “assimilation” works. Progressivism is, in fact, incompatible with assimilation – in any logical sense.
The progressive fervor for immigration from third world countries combined with the speech and behavior restrictions of political correctness, make assimilation impossible. Therefore, even if immigrants from 21st Century Mexico were as likely to assimilate into American society as previous waves of immigrants (a big if), we should still expect American society to be less successful at assimilation today.
Assimilation is the process by which foreigners are incorporated into a native population. No doubt foreigners can change the native culture, but the general trend obviously must be toward fitting foreigners into the native culture.
In general, American society is getting much less good at assimilating immigrants.
GLP digs up a study on assimilation – read his post.
It’s time to stop obfuscating and state the goal of assimilation in plain language. The goal of assimilation is to get Mexicans to stop acting so . . . Mexican.
I see only one way to bring this about: make fun of extremely “Mexican” behavior.
In the old days (according to those charts at GLP) American society was pretty good at assimilating immigrants. In those days, if an Italian guy was acting too Italian, you could make fun of him. Racial slur aside, the point is that non-assimilating behavior was shamed.
Thanks to the total dominance of progressivism today, if a Mexican is acting too Mexican, we have to . . . celebrate his Mexican-ness. In other words, today, non-assimilating behavior is celebrated (by people who get as far away from it as possible).
All else equal then, we should expect that as societies become more progressive, they demand more immigration and get worse at assimilating immigrants. Until something gives. Such is the left singularity.