I don't have much to add to this topic, you can sample a few pieces like this Open Border Libertarianism Is Self-Defeating, but I did want to share something written by a guy I have "known" on Facebook for a while, Darrell Dow. He writes for American Remnant and the piece in question is this one:
It is a well written and thought-out essay. Give it a read and maybe a comment or share. TIA.