Two out of 5 of my (male) cousins in the UK have, well, interracial relationships, and I've seen a bunch of it even out in Wales where minorities are truly in the minority. Two others are in same-race marriages, and one to another guy.
They may be a minority but from my experience it's more common than you would expect.
.. and, no, I do not support it. I stay out of it. I don't care what people choose as long as it doesn't impact me.
I "stay out of it", too. So long as folks don't wave their righteous interracial-marriage or sexual preference in my face, I don't give a damn; aint none of my business, and it doesn't affect me personally. Hell, MY marriage is interracial.
But I wonder (in a semantics way) at your definition of 'interracial'. I should have put mine in quotes like this-- by "interracial" marriage-- I meant strictly
black + white household portrayals on BBC TV. "Interracial" as I use it, being a euphemism that excludes "Asians" (to include non-Orient races-- i. e., Middle-Eastern and Indian) and denotes strictly black and white
BBC-portrayed couples (the theoretical television majority minority marriages). In my experience, having lived in the San Francisco Bay Area/Silicon Valley for 53 years, I can't count how many truly interracial marriages I knew of (lost count at 12); BUT. Of at least 40 couples (as I look through my Rolodex) there is only one black + white couple and like the "new" demographic, he split as soon as the child was born back in ~1978. "One" is probably a measure or indicator of how dichotomous the "African"-American culture is when melded with "white" (i. e., "European" -American), Asian, and Latino -American cultures here. All that to say...
2 out of 5 ain't close to 5 out of 7 and 4 out of 6, and I wonder it that black/white couple commonality is as "Oxford" as portrayed. The last Commissioner Loeb and the last Felix Leiter were an annoying stretch, too. On the other hand, the Eichelberger clan must have been severely disappointed with their pitcher, Juan. Yeow.