> then I'll be taxed to pay for them anyway. That's not "nothing".

Taxed to pay them what. If you have a beef with welfare programs in the us, you should take it with the welfare programs. Foreigners never had a voice or a vote in terms of what qualified for such kinds of programs.

> If the cultures are very different, and they come in huge numbers that refuse to assimilate, then I suffer dilution of mine. That's not "nothing" either.

This argument could be made verbatim against many things that today are considered bigotry or illegal.