"the current admin are working hard to destroy the U.S as if they're foreign agents."
https://news.ycombinator.com/item?id=49453997
We should modularize our discussion to distinguish between the various effects of immigration and the most humane/optimal way to enforce immigration law.
If you give any debit for the decade-long Great Depression, or wartime malaise due to loss of life, emotional toll, and rationing, it’s fair to conclude that half of the period of good times was during exactly that post-war rebuilding (largely powered by US industrial capacity) and concomitant baby boom.