Ah just face it. The majority of comic readership is white, thus that is where the money is. In the white readership. So of course they'll be catered to more than most. As for these nameless others on other boards. Well, they've grown up reading, watching and for the most part interacting in a world that reflects their image. So of course anything outside that is going to seem alien and strange and must imediately be pigeonholed and deemed "bad".
Comics is about fantasy, escapist fantasy at that and fantasy at it's heart is all about empowerment. Whether it be nerds, minorities, women or homosexuals. It's designed to make it's targeted reader feel empowered and safe in a world where they are the uber-alpha. So if the targeted audience is the white male then the white male will be at the top and everyone else will be lesser to some degree. Same if the target was the black male, women (whatever their race) etc.
I agree with Marvelous that the solution is to diversify things behind the scenes. More diverese creators, publishers, marketing executives and what have you , so that a more diverse audience can be drawn into the industry and proven to be just as profitable as the white male audience has.
Then and only then will we see some true diversity across the board. As of now this industry is way too insular and inbreed to expand like most other businesses. I feel sorry for any kid that likes a book or character that isn't as popular on the net and they come on-line looking to share their new found love only to be met with the torrent of ignorance and negativity that seems to permeate most boards.
Ah well. Here's to a better future lads and ladies.