I am the same, I have black friends and I don't have a problem at all with anyone from any ethnic background.
When I started punting many years ago, before adultwork, I would look at the cards in telephone boxes, I found a card the lady looked ok so called and went to the house.
I was met by 3 black ladies, so I walked, they were like why, I said sorry but I don't get turned on by black ladies, they said things like we are all pink on the inside, I was said sorry a few more times and left.
Now, I have NEVER walked since, I am one of these people who just take the lows with the highs and just get on with it, I have met some ladies who are less of a turn on due to size n looks but black lades are just a turn off if anything.
I am really sorry if that offends some readers but I cannot help it if my member does not preform. I do like oriental ladies.