I'd venture to guess most immigrants work harder than natives.
I reckon that too.
I think all places are bigoted under the surface, but it isn't spoken about openly. Kids speaking is a good indicator of it, but normally only the other kids hear it.
There is a politically incorrect musical in the US called Avenue Q. It's like the opposite of sesame street. Anyway, there is a skit called "everyone is a little racist" or sometimes bg like that, that I frequently drop in one of the discord servers I hang out in.