I could be mentally attracted in the sense of appreciating their look or personality but I couldn't be sexually attracted to someone who rejects me physically. Maybe it is all my years of living closeted in a straight, southern, homophobic world I learned to compartmentalize certain feelings. Otherwise you'd be constantly yearning for the 90%+ of guys out there who simply are not available to you. You might survive that way but you wouldn't thrive.
I've also known guys who had all kinds of other preferences. For tallness, when I have shortness. Younger when I was older (and was still dating). For Black, and I'm White, the color he's rejecting! Now there's a switch from what many guys may think we're discussing here.
But the world is not all about me. What it means is that I'm not on his list. And many guys have a list. But that doesn't make him less physically attractive, or less intelligent & accomplished. So maybe this guy has potential as a friend.
Although not if his preferences are based on raw racial prejudice, even hatred. We were friends with a gay couple for nearly a year. Then suddenly one of them, raised in Louisiana, started railing about how he hated N*****s. Not once, but repeatedly. And his husband did not correct him or anything, just remained silent.
My husband & I discussed it, and decided it represented deeply held beliefs, unlikely to change now (they were close to our own ages). We stopped seeing them and doing stuff with them. We wouldn't be associated with anyone who believed those anti-Black things.
But if you simply don't like how I look regarding dating, but still can respect me as a person, that's just fine. Hell, even **I** don't like how I look! LOL!!!