I'm reminded of a quote that goes something like this:

I've been thinking about the free exchange of ideas recently and come to the conclusion that it isn't an open market - it's a potluck.

Everybody brings something to the table and you're free to pick and choose the things that you want to try, but you're not obligated to try everything. Just because Karen put a piece of shit on the table and calls it a sandwich doesn't mean that you have to take a bite to know that it's shit. Similarly, we are not obligated to take white supremacists and other extremists' ideas and seriously debate their value. They're shit and can and should be treated as such.

The beauty of a self-curated experience is that you're free to engage with the things that you want and can ignore the things that you don't want to deal with. The risk of people isolating themselves is simply a part of having the freedom to choose your own experiences, the same as the real world.

Personally, one of the reasons that I'm here is because I have no choice but to deal with right-wing extremism in my daily life, and I don't want to deal with it online as well. Reading news articles? That's fine, but I don't want to see chuds screaming about DEI or woke or whatever in the comments.