I was a virgin until marriage, so I applaud your decision to remain abstinent. I've never liked hardcore porn (nothing very graphic like squirting fluids, "gang bangs"...to me that's ick, but whatever floats one's boat) - but I DO like erotica/softcore (i.e. couples making love). I don't like the way black men look in clips of a sexual nature, either. It was through these clips that I realized - though I find beautiful men and women in all groups - I'm not actually "sexually attracted" to black men. I think porn doesn't help, making black men look like oversexed beasts, mandingos (it's a stereotype from American slavery, but many black men eagerly embrace it). I eventually also realized I'm not into it when men are dark "down there." I MAY have been genuinely attracted to black men at some point (not sure anymore), but it's natural for attractions to change, especially during puberty or as you transition into adulthood. I don't watch anything sexual with black men now, and I also prefer watching women who are NOT white, because I hate the washed out look of bottle blond hair against tan skin, and prefer watching curves and fuller lips. Nothing wrong with white women or black men's looks; I just prefer "other views" in my erotica or, well, bed. Black women/white men is the perfect solution for erotic viewing needs. ;p
It's not a big deal if you discover you've become more attracted to white men (if you're not yet, you will be if you continue watching them nude, sexing up women who look a lot like you lol). Just embrace it and go for what makes you happy rather than trying to fight it and settle for something other than what you really want. I'm a young black woman married to a white guy. It wasn't the erotica, because we'd been together for some time before I realized I'm not really into black men sexually (I thought I just liked a variety of men) - but the erotica helped me realize for SURE I had a strong preference (I also like some Latinos and Japanese men). My white hubby and I are so happy, attracted to one another, in love, and mutually satisfied. The color contrast during intimacy makes things far more interesting - but you knew that. ;-) Being interested in white men is not a tragedy like you seem to think. ;-) For me, it's been a delight! Good luck in whatever you decide. I hope I've helped!