I once took an American friend out for a night in Manchester. His first night in the UK.
That dispelled a lot of the narrative of the quaintness of Europe.
There's this thing that Americans have. An old world ideal. Where they picture is all having two hour lunches and generally chilling about the place. It isn't real, just another dream sold to you by capitalism.
Sure, we do some things differently over here, public transport and the ability to walk places being two that I'm particularly fond of, but let's not rose tinted this.
The rise of fascism, or at least nationalism, is coupled with some awful working practices, mainly imported... And some of the levels of outright poverty, both urban and rural more than challenge that in the states.
This is just another reflection of the grass being greener.
You think Europeans are friendly? In my experience people are just people. The folk I've met in North America have been lovely, by and large and we have much, much more in common than this fairy tale suggests. But it swings both ways and we also have plenty of arseholes across Europe that would as soon as shank you as they would invite you for a chat and not ask you what you did.