Ethnicity has absolutely zero impact on whether I'd date someone or not. Personality is the most important thing to me by far. I can understand why someone would rather date within their own ethnicity, but personally it doesn't bother me at all dating outside it, in truth I actually quite like the idea (although again, personality is 100% of the deal, not ethnicity).
I've mostly dated white girls, although that'll be because I seem to get introduced to far more white girls than anything, rather than preference. I've dated a black girl, a hispanic girl and an asian girl and ethnicity was never an issue, not even a tiny bit. Despite vastly different backgrounds and to an extent culture, I never really felt particularly alienated by it, it was just another subject of conversation and one that I found genuinely pretty interesting to discuss/learn from. Perhaps it's a silly notion, but it felt like our differences made us closer, because it made our similarities more blatant and the eagerness to learn and empathise with the other always won out. The hispanic girl especially had the most differences, being from a different country (or several in her case), a different lifestyle and upbringing, but I've never ever been so close to somebody as I was with her, even before love struck.
My family is pretty against the idea of dating outside of your ethnicity and while I have to respect their opinions, I can't respect the snarkiness and unpleasantry that seems to go hand-in-hand with that.
If I absolutely had to choose to date inside or outside, I'd go with outside, differences can be just as much of a boon in a relationship as similarities, in my opinion.
