Yep, but rest assured there’ll be an army of people in other threads telling us all how it’s fine having open borders.
To be fair, the US (and Canada) do a much, MUCH better job of integrating immigrants from all over the world into mainstream civil society. Doesn't mean that anyone can make "open boarders" work. But whatever they have going on in Europe that makes everything so constantly hostile isn't correlative with how immigration plays out in North America.
I teach at a school where 30% or so of our students were born in another country. We have kids from all over the world (60+) countries, with 60+ first languages. I've been at this school since I was a student in the 90's when less than 1% of our kids were people of colour and/or immigrants. I can say, sincerely, that I don't think there's been a time in the school's history when we've been a more cohesive and mutually respectful community.
It can be done. The trick is to celebrate diversity ("Tell me more about you and your experience and about how you think and why...") while rallying around a common identity ("We're all Americans, or Canadians, or members of this school family, and here's what that means about us...").
European's seem to suck at that. They lean toward collectivism, so they hate diversity ("I really don't care what you think; just get with the program..."), and they fancy themselves cosmopolitan, too, so the idea of sharing a common identity also sticks in their craw ("We're not Spanish, or German, or French; that's nationalistic drivel; we're European, which can mean a whole lot of things...").
Admittedly, I'm from small town Canada, so my perceptions may be skewed here, but those are my impressions from my travels and and experiences with a wide range of people from all over.