Something nobody speaks of is that these people crossing borders come from a nomadic background.
and I'm not just talking about historically, dispersing in small bands coming together every fall for communal bison hunts.
I'm talking now a days they are still nomadic, only today instead of following the seasonal migration of bison they are migration workers working on plantations and transnational factories. Places where they ain't making enough to cover their expenses. When that work dries up they move on. They have been living like this for years and y'all expect them to just 'go back where they came from' that's ignorant.
You can't just put up arbitrary borders, enforce policies like NAFTA, and expect motherfuckers to shut up, starve and obey.
No one who is talking shit about immigrants wouldn't do any different if the shoes were on the other foot.