So let me start by saying that I think your reply is the kind of thing we need more of around here: I think you've created scope for a productive conversation about the specifics of what we want to encourage or discourage as a society.
There are plenty of examples of these mega-FAANGS doing stuff that just sucks, and to the extent that a community like HN can be calm, concrete, and solution-oriented about that we have a lot of clout in aggregate. These companies absolutely cannot function without elite heavyweight hackers, and they absolutely cannot afford to pay "fuck the planet" wages to a group of people heavily skewed towards "made some serious money already".
I think my point is that partisan political bias should be relatively low on HN's collective list of things that urgently need changing in hyper-tech: it's one of those examples of the arbitrarily selfish incentives aligning with roughly the "right" thing.
FB/Mark had to cut Thiel loose because he was dragging them into extreme partisan politics. I strongly suspect that the dominant term there was the practical necessity, but I'm on board with the outcome.