[throwaway6789]

>And worse, with increased migration driven by social chaos and war (and eventually, by global climate change)

What if US will also be affected badly by global climate change? Then these "uncivilized" people won't be coming to your country.

[mirimir]

True enough, eventually. Watch out, Canada ;)

But first, there will be maybe a billion coming north. And there will very likely be concentration camps.

Edit: Also, please don't read my comment as being anti-immigrant. What concerns me is the likely authoritarian response from US governments. And I'm concerned both for them, and for me.