Adding my voice to the "good riddance" side of the aisle: thanks to what freedom of speech, association, etc. actually mean in the legal / constitutional context, said twats are guaranteed a space for communication - the real world! They can stand on a corner or picket their local City Hall and spout all the hateful nonsense they want.
(They can't, however, verbally assault bus drivers / police officers, or yell "Fire!" in a crowded theater, or directly incite violence, or disturb the peace at all hours of the night, or needlessly interrupt judicial / civil proceedings, or...point being: even in the US, the exercise of free speech comes with limits and responsibilities.)
Like publicans of yore banning rowdy drunks from the premises (which itself came with political / legal overtones; see https://www.amazon.ca/America-Walks-into-Bar-Speakeasies/dp/...), many owners of online spaces are deciding - as is well within their rights as owners of a private space - to ban users and groups who disproportionately degrade the experience for all others.
(This is my general surface-level opinion, without getting into discussions like https://gimletmedia.com/shows/reply-all/rnhzlo around the amplification of extreme voices by short-sighted metrics optimization, or debates on whether providing space for hateful voices effectively denies free speech to the targets of their hate, or explorations of the tradeoffs different open, democratic societies have made around hate speech.)