"Juan is an American citizen (of Mexican ancestry) who
lives in El Paso, and owns a restaurant. His cousin, Carlos, lives
just across the river, in Mexico. Juan wants Carlos to come live in
his big house, and work at his restaurant. Carlos wants that too.

Question: Do you personally have the right to take a gun, go to
Juan's house, and tell Carlos that he CANNOT live in that house,
and CANNOT work in that restaurant?

Answer the question, at least to yourself, before you continue.
Once again, you can hide behind various "authority" mythology, like
"Constitutions" and "laws," but what it comes down to in reality is
that if you forcibly chased Carlos away, YOU are the one initiating
violence; YOU are the one oppressing someone who has done nothing
to harm you or anyone else; YOU are the bad guy. And if you ask
someone ELSE to do the thuggery for you (like "government"), you
are still the bad guy."