It’s really remarkable how much downvoting one gets if one says “SV tech company cultures are strongly left leaning.” This is such a widely known thing to anyone who’s worked in that environment that I’m surprised it’s controversial. Perhaps people just don’t like having this fact stated?

The high ratio of downvotes to rebuttals is also telling: people want to anonymously disagree but not to disprove. (I have a comment further down thread to the same effect that got a similar reception.)