Free Speech for Me--But Not for Thee: How the American Left and Right Relentlessly Censor Each Other (1992) [1] is a good read on how we got to a point where our ability to communicate across ideologies appears to be broken in many ways. For example, in 1963 Yale disinvited George Wallace, who was popular in the deep south, as a speaker. As a result, observers were deprived of a chance to hear opposing speakers' argu…
> Censorship is all these characters need to gain new followers. No, they also need a platform to make people aware of their existence, their views, and to recast their censorship to be in their favour. The whole point of no-platforming individuals is to make a statement that their views are seen as reprehensible and to stop them from being able to air those views to an audience. Not all ideological disputes are abou…
To your point, IIRC, the impact of deplatforming has been studied. Like when that troll Milo got bounced. It greatly diminished their reach and impact.
Sadly, some trolls (Alex Jones) have enough juice to spin off their own bespoke hate machines.