Not to be annoying but I think it's just semantics at this point. Most of us would agree that cultural differences don't matter insofar as they don't conflict with American values, fundamentally being the Constitution, free market capitalism, and just a general "leave me alone and I'll leave you alone" attitude. No one gives a shit about religious and holiday traditions. There are "cultural" differences (coughIslamcough) that conflict with those values and those people need to GTFO though.

The welfare system is a massive issue.

Edit: I'll also add that yeah I'd agree that immigration should be off the table for at least some time, given the current shit show we're in. I think that's a given.