It’s amazing, isn’t it?
Walls and borders are humane, and work everywhere, but in the US.
It’s a geographical oddity.
They gain power from the West’s destruction and over-run.
Frankly it goes back a long ways. And the Repub Elite has been a big part of it.
Here is Bush I and the Sainted Reagan (TM) in 1980. And Reagan is the one more in favour of open borders and against a “fence”.
https://www.youtube.com/watch?v=YsmgPp_nlok