People instinctively seek out "their own kind" to which they can relate and feel safe around. It's the same with every race, ethnicity, religion or nationality. That's why in any major city there are areas with predominantly minority population. They stick together subconsciously.
Well lately my taste has changed, I love white men with blonde hair and blue eyes but recently I've started liking darker skinned guys (not too dark!) like Spanish dark, but this one has green eyes so he must have some white people blood in him :-p
White women can only date White men, if they're asked out on dates by them. That's the dynamic. Man asks woman out. But most White men don't even know or understand that; can you believe that? They just stare at White women and wait for something to happen, miraculously. And other White men, who do get the dynamic, don't even try to hit on White women anymore.
White women prefer White men hitting on them and asking them out before all other men, but many White men for irrational reasons have opted out of asking White women out, which inevitable makes White women settle down with anyone who makes them feel desired and hits on them. Which means White men themselves are responsible for White women dating non-White men, because these non-White men desire White women, worship them, cat-call them, flirt with them and ask them out all the time, whereas White men often never do it at all anymore.