I don't think that having thoughts about how something appears to either reinforce or detract from a racial stereotype is weird at all. Hopefully, good rational thinking following these thoughts leads you (as I think your post indicates) to sensible conclusions like -- if we're ever going to truly be color-blind as a society, that is, if we really learn to judge only by the content of character (or talent, ability, as the case may be), then we'll have to risk sometimes being thought of as racially biased. This is simply because sometimes things just play out in ways that seem to reinforce racist images even when that isn't the intent or even a subconscious motivation.
I think our society is undergoing a long-term transition from a blatantly racist country, to a segregationist country, to a more subtle and subconscious racially biased country, and eventually to a country in which race plays no role in predetermining our thoughts about an individual or group of people. I think talking about the thoughts like the one you brought up in this thread is a good thing -- I think it's part of the transition process to openly put racial (not racist) thinking on the table and acknowledge that it exists and that we're in the process of getting past (working through) this aspect of our social world.
As an interesting side note, I expect many of you heard the quotes from Maine's Governor about the drug dealers who he characterized with "street" sounding nicknames and then stated that they come in and impregnate Maine's white girls. Racial or racist thinking, whether blatant or subtle still infiltrates our society and frankly I'd almost rather he comes out and says something like that rather than just think it -- because it allows us to have the conversation. It faces us with the reality that racial/racist thinking is something handed down and ingrained into all aspects of American culture. It took gereations to create it and will take generations to undo it.