> Having lived in other countries I not only wouldn't be able to go back (because I find some pervasive things of the culture repulsive and unlikely to change any time soon), but it has also made it easier to notice the cliched patterns of hatred towards the "other", the same things that are said of mexicans in the US are said of the polish in the UK, people from some arab countries in France, the turks in The Netherlands (although they are far more "polite" about it), etc.

That's an odd set of examples. The countries you named are just about the least racist places on the planet. I'm sure you can hear some racist things about Bangladeshis/Pakistanis in the U.K., but nothing compared to what you'd hear about various groups in Bangladesh or Pakistan! (I’ve lived in the US 30 years, and almost all the racism I’ve ever witnessed was when other Asian people would be like “oh it’s just us Asians here, let me tell you how I really feel about [people].”)

> Sure, there are plenty of sensitive subjects that can put you in the bad side of a culture, but the "Merry Christmas" crowd is the same as "Guns, God & Country" crowd which is in many occasions the "racism doesn't exist" crowd. I used that sign as an example because it's the one I remembered the most vividly, but it wasn't the _only_ sign.

Even the "guns, god & country" crowd in the U.S. is far more welcoming and tolerant than most people in the rest of the world. In the U.S., we fight over whether English should be the official language. In France, few people question French as the official language. (And can you even imagine suggesting in France that kids should learn Arabic in schools to accommodate immigrants? But that's very common in the U.S. with Spanish.) And the French are incredibly tolerant compared to Bangladeshis. Even among the "gods, guns & country" crowd I'm more welcomed (as a brown guy with a beard) than a white American would ever be welcomed into Bangladeshi society.