His absolutism doesn't extend to bots. His absolutism probably doesn't extend to having no real recommendation algorithm, and just random views for everyone. If he throws in a PageRank-like algorithm a la the central Google algorithm; or even just the choice of that, you might get the equivalent of some pretty solid moderation. Google definitely has holes and problems, but it can't be considered absolutist re free speech.
You mean other than the time where he harassed someone, called them a pedophile and hired a detective to investigate and try to dig up dirt on them because they got under his skin? That guy, who now has everything anyone has ever said in private messages on Twitter?
So that isn't an example of silencing dissenters, or of undermining democracy. I agree it's some pretty ugly character on show. But that wasn't what I was asking.