If anything, the opposite is true. Europe receives less educated individuals who will be a burden on their welfare, while the USA has cheap labor from South America and attract top talent globally.
name me a single EU nation with a higher per-capita rate of immigrants from developing countries. it is simply not true that Europe has more immigrants without strong education background than the US, there is no way of cutting the data
i’m not changing anything - you are the one who brought up welfare. my point is and always has been that the US has a multi-decades long run of relative immigration permissiveness towards people from poorer countries - and that will impact education outcomes.