Alternate theory time!
Comic book heroes are ultimately pretty conservative. When a Marvel property comes out, whats the first thing that the comic book fans ask? "Does it have Wolverine/Spider Man/Iron Man/Whoever in it?" Well every comic fan has asked that same question. Meaning the character pool, including rip-offs, bastardizations, inspirations, and established characters descendants, all take there lineage from the dawn of X Men. In the 60's. Care to ponder why a majorly successful publication didn't have a lot of black character saving the world, when the people with the same color skin as them weren't allowed in the front of the bus? Besides, there is some momentum for most characters to be white anyways, since, indeed, black people are in the minority population wise. That's why it's called a minority. So the tendency towards white males is hardly all that sinister. Not only that, but Marvel is pretty damn progressive when it comes to tolerance, all things considered. They are slowly diversifying there cast, and from what ive seen, it does no come across as forced, usually. Hell, the very basis of the entire franchise is peaceful acceptance and tolerance of people born a little different from you. And try to tell me that Professor X doesn't sound like Martin Luther King with super powers a lot of the times. So overall, Marvel seems to be moving in a good direction, are aware of the problems of racism, and sometimes they have too many white characters, sometimes they try to force minorities into the story, but generally they are moving in the right direction. Good job Marvel, you could certainly be doing a hell of a lot worse. And even though I disagree with this guys criticisms, kudos to him for being self aware. You're going to be fine.
::Edited to add:: The greatest summary of racism, I kid you not, was from the old X Men cartoon. It was an alternate time line where Professor X was assassinated, and because of that there was an all out mutant-human war, and most everyone was dead, and cities were toppled. So teaming up with Bishop, Wolverine and Storm, who were a couple in this universe, go back in time to the 60's to save Professor X. They stop by a diner to get something to eat, and a couple of locals get very, very angry at Wolverine and Storm, because it was interracial dating. They harass and threaten them. Then, Storm gives the locals a funny look, and says, "Discrimination based on...skin pigmentation? How...quaint." And they both proceed to beat the crap out of the bigoted locals. Still would be hard pressed to find a more eloquent example of the stupidity of racism.
