I think it's entirely possibly that there may be a net benefit to segregating problematic groups now, but it may not necessarily remain that way in the future. We are undergoing growing pains in our society stemming from a vast easing of the cost of self publication along with massive siloing of opinions such that people are not always presented with credible alternatives to their own point of view (or credible alternatives are rendered less credible through lack of trust).
In the same way that I think those being born now will have different views on privacy, spreading personal information and identity than those in their teens now, and those have different views on those topics than those in their thirties (the pendulum swings slowly, but I'm confident we'll settle on being more private than early adopters of social media have been, but less private than those that lived without it), I think future generations will come up with their own solutions to the problems of credibility, fake news, and the other myriad problems insular social network sub-groups have exacerbated.
Put another way, these hate groups are using tactics that are proven, but have wider reach and more effectiveness given our current reality, so the only way to effectively fight that virality of that in the short term (until people learn to mitigate the worst effects on themselves) might well be to isolate the behavior. It's like any other virulent disease in that respect.
From my experience, many of the people that inhabit these hate groups often browse subs like r/incel (involuntarily celibate). It may be the case that simply quarantining these groups may work to drop their numbers because members of these groups will simply not reproduce and not spread their toxic ideologies onto their kids.
While funny, that's actually an interesting point. If the main spread of the ideology is through viral memetics to the point that spread through cultural familial indoctrination is very low, quarantining the the practitioners in some manner is double effective. This works even without them having problems procreating, as the same outcome would be observed if offspring are less likely to have similar beliefs (which I'm not sure is true).
I suspect if there is high overlap between the involuntarily celibate sub and the fat shaming sub, there is perhaps something deeper going on in the psyche of these people related to their own body-related issues.
In the same way that I think those being born now will have different views on privacy, spreading personal information and identity than those in their teens now, and those have different views on those topics than those in their thirties (the pendulum swings slowly, but I'm confident we'll settle on being more private than early adopters of social media have been, but less private than those that lived without it), I think future generations will come up with their own solutions to the problems of credibility, fake news, and the other myriad problems insular social network sub-groups have exacerbated.
Put another way, these hate groups are using tactics that are proven, but have wider reach and more effectiveness given our current reality, so the only way to effectively fight that virality of that in the short term (until people learn to mitigate the worst effects on themselves) might well be to isolate the behavior. It's like any other virulent disease in that respect.