Wars are only fought where at least one side thinks they can win. SV is the front line because it is more egalitarian than those arenas you mention.
If you think sexism is bad in technology, you should see it everywhere else. The gender gap has gotten a bit better in the last twenty years or so, but traditionally male occupations are still overwhelmingly male, and likewise for female occupations. And salary gaps where you do find men and women working together are just abominable.
Sexism is one of those things you just kind of ignore until you really start looking, then once you do you see it literally every fucking where. And it's utterly depressing. We like to think that because we gave the vote to black people and women that we're enlightened.
Feminism, as a movement, is aimed at battles it thinks it can win. Nerds who aren't particularly attached to conventional forms of masculinity are already partly won over.
Sexual dimorphism, which includes psychological traits, extends to humans as well. We are animals too after all.
What an age we live in. Nearly every animal on earth, including our closests primate relatives, have innate morphological and behavioural differences between male and female. Yet noticing that homo sapiens exhibit the same differences has become a thought-crime of the highest order.
These differences cause a tendency for men and women to gravitate towards certain fields. Skewed sex ratios in a profession do not necessarily indicate discrimination and its time to stop pointing and sputtering when not everything is 50/50.
http://www.slideshare.net/terriko/how-does-biology-explain-t...
On the other hand, if you make non-scientific claims, it's pretty easy to push "innate biological differences" to mean whatever you want it to mean. Like that women are more naturally suited for programming than men, because it's just like prepping dinner.
http://gender.stanford.edu/news/2011/researcher-reveals-how-...
Most troubling, any mention that innate biological differences between the genders could play a role in the skewed gender ratios is not even considered in these diversity attack articles. It has become a thoughtcrime.
That said, from within Silicon Valley it sure looks like the feminists are coming for the supposedly easy money of engineering while ignoring the risky things like policing. True or not, it's sometimes the perception that matters.
It's terrible because it doesn't fit the narrative you're trying to push. Paying occasional lip service isn't the same as "fighting for the right". Working in a coal mine or fighting in the battlefield isn't a "right". It's an obligation blue collar families fall into.