This is not about shutting down all controversial discourse. It is about "defend[ing] a tolerant society against the onslaught of the intolerant". Surpression shall only happen if there is no other way to defend a tolerant society cause the intolerant are working with (massiv, wide spread) violence.
I don't know who is in the position to decide when that point has come. But one could argue that people invading the capitol is that point.(I don't think so)
What I am really worried about, is that it seems like tech companies will have to make those decisions. In the end there will be individual persons, who make that decisons and that is very dangerous.
Look, an "Anti soviet warrior", "on the road to peace" - https://www.businessinsider.com/1993-independent-article-abo...
But: There is noone else, who is able to control the growing beast of social networks that they created. And in parts they can not control it either. There are too many languages used, that no employee or AI understands.
In the end we are darned to watch and hope they make the correct decisions.
Google and Facebook should host whichever legal content they'd like, and we should build alternative systems that give us control over how we spend our attention and share our influence.
If we deplatformed every “violent thug” that did something people didn’t like, you would have a fraction of the rights you have today.