The reason why Patreon et. al. are deplatforming people who make reprehensible statements, it's because they risk losing ad revenue. Other companies will stop running ads if they risk them popping up on Uncle Joe's Lynchin' & White Sheets page. It's a purely profit-motivated move.

As long as people and corporations are motivated solely by profit, you will see this move to "truth in the middle" milquetoast centrist presentation, in order to not offend the advertisers and shareholders.