I disagree. No, we can't protect folks from stupid ideas. But you can stop them from spreading as quickly and try to protect people against actively harmful id

I disagree. No, we can't protect folks from stupid ideas. But you can stop them from spreading as quickly and try to protect people against actively harmful ideas and ones whose very intention is to spread hate or harm or divisions in peoples. Anti-vaxxers, for example. This is actively harmful to people. This group of folks can kill innocent folks simply by refusing to vaccinate. Christian scientists? There are reasons to suspicious of some science, sure, but these folks are using the "science" bit to try to make folks believe in religion and discredit actual science. Holocaust deniers? Racists or stupidity. The actual message doesn't matter - it is knowingly offensive to groups of people. Sandy hook deniers have harassed victims. Flat earth can be a fun theoretical topic to discuss so long as everyone is of the understanding that the earth isn't actually flat. Unfortunately, that isn't the case. As far as their echo chamber is concerned, they already have it. Having mainstream sources cater to their views just increases the echo chamber. We already know folks have it. It also makes it easier to recruit others into that echo chamber. We can't stop it, but we can surely make it more difficult to create one, make it more difficult to convince folks, and so on.