>that they otherwise might not have.

I think this is letting people off the hook. We're talking about adults in their 40s and 50s here. When people like that 'suddenly' endorse extreme views it's because they had held them back and feel enabled to say them now, an adult isn't going to become an extremist because someone was mean to them online.

I'm 20 years younger than Blow and even at my age I can tell I'm settled enough psychologically that adopting radically different views would require a lot of internal effort. Views don't exist in a vacuum, to believe radical things you have to radically alter all the other things you belief. I really don't think we should people like this like children without agency.