And this is why the right-wing is so up in arms about private sites booting them off their platforms. Because if they have to start their own i.e Voat, Parlor, they will find that they don't have the necessary tech and financial structures to run such a site. So by fighting to stay on Reddit and Facebook, they can freeload off of the other parts of the sites that provide value and can support the marginal cost of their white supremacist subreddit/videos.
Fascists--and Voat is populated largely by fascists and by those for whom fascism is not a dealbreaker--need to seem normal in order to get their hooks into credulous people. When you don't eighty-six the fascists, 1) they bring their friends, and 2) they make new friends, because the garbage they spew is emotionally effective and requires an overwhelming amount of calm and coherent deprogramming to unwind and there's not enough labor available to do that forever.
Not only is that a factor, but they need to be able to disrupt neutral or leftish forums as well. That's why the notion that "only" /pol/ on 4chan is tainted is totally laughable. It's not, they do raids on other boards and are disruptive and the whole site has become garbage.
That is what they want to be able to do on twitter and on facebook -disrupt neutral or left spaces and make them garbage as well.