The comment starts with "let's face it", as if what it was claiming was a self-evident truth. It's not, and writing posts like that isn't really engendering productive debate.
It is hard to deny that we have a serious brain drain and a serious investition drain, too. European money regularly looks for investments in the US, to the tune of billions. The other way round? Not so much.
But people really don't want to admit that our welfare/bureaucratic systems can't be sustained with aging populations and stagnant economies.
So this could be a debate about something completely other than the social model and it's so complicated that it's hard to have any sensible argument about it.
The European social democratic model introduced after war relied a lot on having a lot of working age people supporting relatively small cohorts of the elderly. It was a working assumption - before birth control, few could imagine how deeply would fertility collapse.
The German chancellor Adenauer assured the Bundestag that "Leute haben Kinder immer" = people will always have children.
No, not always, no.
Trying to ostracize one model to favor the other is the recipe for a collapse
Perhaps that's what the USA is, a disposable Empire