This is the whole point, I think. A couple years ago I posted a thread in which I was castigated for marveling that my young adult children have grown into individuals to whom race isn't a big deal. They have each dated others from several different cultures. In my generation, that simply wasn't done, or at least, not well accepted. A lot of people took that as bragging, but truly, I am amazed and proud of this generation which seems to have advanced so much farther than we ever did.
I am 56, born and bred in the Deep South where racism was a part of daily life as a child. Thankfully, my parents were more forward thinking and never once called people of color names nor allowed any of us to talk badly about them. My grandparents, OTOH, nearly had a heart attack the day I came home from school and announced that I thought a certain black boy in my class was cute--and I am not exaggerating; my grandmother was so upset she had to go to bed for the rest of the night.

That taught me CLEARLY that dating across cultures would be a HUGE no-no in my family. And I'm ashamed to say, that in college I turned down a date with a very nice young man for the sole reason that he was black.
Today, I would have made a different choice and not thought twice about it. I am sorry I couldn't be brave back then. Today, nobody seems to even care when they see two young people of different races dating or marrying. My hat is off to all those families who chose to cross race lines and pave the way for a new understanding. When I go to church, I see almost as many brown faces as white faces and it's a good thing. It's a reflection of my community and I'm proud to be a part of it.