I get that Null is a bit of a tar baby (not that kind), but the first bit of your post kind of gives away that it doesn't matter to these people:
"Imagine you are a company trying to make a good name for yourself and suddenly get an army of people complaining about how you are supporting the alt right. You google “Kiwifarms“ with every place like Wikipedia calling it the evil doxxing harrasing site with ties to the alt right..."
That right there would be enough to crucify Josh. He could've otherwise been a saint, but because a certain group of people decided to release coordinated media hit-pieces about how Null is the reincarnation of Hitler and that KiwiFarms is his personal Waffen-SS, it was pretty much game over. Speaking of games, this exact same thing happened during the early stages of #GamerGate. Sure, we all know how GamerGate turned out, but, at the start, the movement was originally just a group of gamers who were calling out a certain danger hair for sucking her way to the top of the gaming industry. You could say that the reason the media blitz against them was successful was because GamerGate was cancer, but at the end of the day we all know the real reason was because too many people were calling attention to certain femoids and troons injecting their Western Values™ into the industry and they needed to put a stop to all the misogyny.
Whatever your feelings are toward Josh, in this case it's not his fault. It's the troons'.