No. Syncretism and multiculturalism are distinct. Multiculturalism persists far beyond the former. Insofar as even the hard rights of the world (outside of the massively multi-cultural SE Asia and sub-Saharan Africa) still shy away from "blood" or racial nationalism, linguistic nationalism is the global norm. And that's all that America has really accomplished. Without the English language and the long arm of the federal government and the "events" it organizes and participates in, America is still very much a nationally-fragmented structure.

Quote Originally Posted by Viking
What do you mean?
Humans interact, don't they? The only way to separate cultures is main violence, and absent that there is multiculturalism, with all its tensions.