I'd think that's an outlier experience. Clearly it depends on various circumstances and there is a more of less hidden institutionalized racism involved, but a

I'd think that's an outlier experience. Clearly it depends on various circumstances and there is a more of less hidden institutionalized racism involved, but as a German, immigrating to USA was smooth sailing (via green card lottery in my case). More important however might be the interaction with locals. And from what I witnessed, Americans (well, Californians at least) are much more welcoming than Germans.