Probably hard to find, but I’m curious to know what are the numbers about foreigners wanting to live in the US compared to the numbers from 10 or 20 years ago.
There might be some data that might indicate some of that kind of intent. Like number of apprehensions of illegals at the border. That peaked in the 80s and 90s and has dropped since: https://www.bloomberg.com/graphics/2017-trump-mexico-wall/im...