The thing is, while the chances of any one individual having trouble are relatively low (unless they're trans, in which case they may simply not have the papers

The thing is, while the chances of any one individual having trouble are relatively low (unless they're trans, in which case they may simply not have the papers that the US is now demanding), the chances of them having this sort of trouble (arbitrary detention etc) in a normal country is far, far lower. Also, these things are organised in advance, often years in advance. Honestly, who knows what it'll look like a couple years down the line.