Also Interracial relationships are also a petty big taboo as well. Aome even argue that being together witha white person wold be dangerous to them
In my bubble, two of my best friends are a married couple of black dude, white girl. It's never even been something mentioned (the different races) as any sort of actual barrier or hurdle.
I'm not saying everyone feels this way. I am sure there are people who feel what you describe, but I don't know if it's a majority. I have lived most of my live in two big cities that I guess are considered "liberal" and I see mixed couples everywhere.