Among my friends from college it would be considered normal—almost expected—to date/marry a person of another race, religion, cultural background, etc. But also my friends look like a diversity picture they’d put in a college prospect book, so maybe a bad example, lol.
But I do wonder how this kind of social justice ideology that is basically a cultural innovation in response to necessity (to the fact of diversity) relates to revolutionary ideologies and to reactionary ideologies. It is fundamentally liberal in character in some way, I think.