Yeah I'm also Black, but I wouldn't publicly discuss this topic. It's just too personal and too emotional.
There's always someone ready to accuse you of self-hatred or some other shit. It's just exhausting.
I don't know what attracts me to other races. I love my own skin, but I always found interracial couples to be visually interesting. Or even just the mix of different cultures.
With that said, I'd never support writing "no X" on a profile. That's just rude. I understand not wanting to waste time, but it does feel like devaluing people.