[hdlothia]

Probably since about early 1990s. Maybe I should say civic nationalism instead of multiculturalism but I think most liberals would reject the idea that ethnicity or heritage were important in determining nationality.

[ilikehurdles]

this is categorically different from multiculturalism. all cultures are not equal, and some are antithetical to liberal values. a diversity of people is good, but as much as possible society should prefer a common banner and shared loyalty, or view of civic duty. America has for a long time shown that there can be a combination of national identity and ethnic and religious diversity.

to that end, i think arguments for or against different degrees of immigration are valid and worth engaging (as opposed to shunning under false labels).