> Why does Silicon Valley feel as though it must not take a position on this?

Twitter and Facebook already do take positions: they actively kick people and groups off their services. Literally happens every day.

Prior to kicking people off, they actively "shadow ban" unsavory elements of their user base to prevent their ideas/hate speech from spreading.

Twitter even does this kind of shadow banning on a per-tweet basis. For instance, I follow a journalist named Sharyl Attkisson (@SharylAttkisson). She would always retweet Trump and Clinton in pairs, but I almost never got the Trump retweets (which gave me the distinct impression she was pro-Clinton). I only found out about the per-tweet suppression Twitter employed when she started tweeting about it.

Twitter even goes so far as to put up big ass warnings now when you click on web links to content that violates Twitter's (progressive-friendly, anti-hate) terms of service! The one I saw most recently was for links to https://voxday.blogspot.com/, which is (apparently) some kind of white nationalist site. Presumably, some people who try and follow such a link in their feed will not actually read it, thinking it's some kind of malware site.

What more do you expect them to do? From my perspective, they're already doing a lot.