Read between the lines: I'm saying that there are a lot of people selecting themselves out of the candidate pool for the large SV tech companies based on the perception of SV corporate culture being promulgated through the media and forums like this one, further reinforcing the group think in those organizations.
What an obnoxious strawman you're holding up. If you're not sending political manifestors on the company's listserv you're probably fine. There are right-leaning people at every company. Even facebook. Especially facebook.
And there are far more stories like that which didn't get into the press.
The right leaning people at tech companies certainly exist. They don't tend to spend all day insisting their coworkers are fired for having left wing views. That's why these firms seem left-leaning - it's those people who kick up all the fuss and make all the demands.
Read between the lines: I'm saying that there are a lot of people selecting themselves out of the candidate pool for the large SV tech companies based on the perception of SV corporate culture being promulgated through the media and forums like this one, further reinforcing the group think in those organizations.
That should make you happy.