I have to agree with bwjunior. My jaw literally dropped at her words (paraphrased): "I am disgusted at the intolerance of some people." Huh?!
I begrudgingly admit that she is charismatic and fairly well-spoken. It's a shame that it's just empty rhetoric.... and I fear Bill might be right in his above prediction.

My thoughts are along the lines of Broadsnark's. It's not that I'm simply not sociable; it's that I'm actively unsociable. (All three of your points ring true for me, by the way.)
Mostly, I'm repelled by the herd mentality that accompanies any organized group, be it religion, a sport, or a club.