Pardon me, but I looked at most of your 54 incidents. A fair number are from comics, gaming, or science fiction communities. Not, strictly speaking, FOSS.
One of them is about a real-life massacre at an engineering school. Are you suggesting that if Mark Shuttleworth were more "evolved," the killer would have killed 7 men and 7 women, instead of 14 women?
Yes, I know, social climate, blah blah. But, seriously, was the killer contributing to Linux Kernel patches? If not, why is it included in this discussion?
Don't weaken your case by diluting it.
Also, perhaps a major factor in the heat of this discussion is the perception that the FOSS community is uniquely sexist. Would this whole debate evaporate if we said something like "There is some sexism in Western culture. IT in general, and FOSS in particular, is not free from some level of sexism."
Or is the heated discussion the whole point?