"80% white guys" - yes, and if you don't know who's gay, who's transgendered, or how these individuals handle conflict, then this observation is kind of irrelevant.
Being racist and sexist isn't going to help an already toxic environment.
You're in your right to disagree, but the answer to wrong has never been more wrong. Educate. Raise awareness. Encourage. But snarky remarks about the race and apparent gender of people? Not helpful.
nobody chose to be white, just like nobody chose to be black. you shouldn't define a person for their skin color, gender or sexual preference, you should define a person by what they are.
That said, if you know people in the Linux community who are more qualified than one or more of the people in the TAB, totally encourage them to apply and encourage TAB to accept them.