What is it about nazis and white supremacists that causes everyone to boot them from their platform? From cloudflare to microsoft to twitter and now facebook, w

What is it about nazis and white supremacists that causes everyone to boot them from their platform? From cloudflare to microsoft to twitter and now facebook, why is everyone so hostile to them? They just can't catch a break, if this keeps up they'll only be able to host content on platforms that are supportive of the message or they'll be forced to build their own platforms and since so many people are hostile to them already nobody will use their platform except people with similar beliefs (e.g. voat). Should these companies really be allowed to just ban them simply because they regard their ideologies as repugnant? edit: I'll note here that the above should be read as tongue-in-cheek sarcasm, but I do think the question is worthwhile when considered in earnest by those who support nazi speech on private platforms.