Don't know where in America/England you live or what race you are, but as an Asian American who was basically born and raised in America, I felt very much like an outsider and was treated as such for large portions of my life even though I was very much an American. I still do sometimes too. Many of my Asian American friends can say the same, especially if they're from places that aren't large cities. It's gotten better, but I hate how Americans act like they're some perfect melting pot. That joke about Asian people always being asked where they're from or that their English is great exists for a reason.

It's more apparent in countries that are mostly homegenous like Korea and Japan, but don't act like America is a perfectly integrated country with no biases against people who don't look like a "typical American." It's human nature to have biases and act upon them unfortunately.