"The free marketplace of ideas" (and also classical liberalism) is hugely reliant on the idea of humans as rational agents (both the people selling and the people consuming). But when we're not, everything opens up to tons of propaganda (especially that from fascists who are more than willing to engage where leftists will reject premises).
You can't have "enragement equals engagement" AND the "free" marketplace of ideas is good. The first is the natural consequence of the existence of the latter. If you take issue with the first, you should not accept the second either.
As for what should replace that 'free' market, I honestly don't know. But deplatforming (not censoring, deplatforming) hate speech is a good place to start.
Humans in my opinion and perhaps my opinion alone are ultimately rational agents prone to do the right thing but only after they've done all the wrong things. I don't have time for that here so I support experimenting with freedom of speech here and regulating obvious abuses of it like Facebook monetizing hatred and superstition. I don't know if I'm right or if I'm wrong here but that's my story and I'm sticking to it.
You can't have "enragement equals engagement" AND the "free" marketplace of ideas is good. The first is the natural consequence of the existence of the latter. If you take issue with the first, you should not accept the second either.
As for what should replace that 'free' market, I honestly don't know. But deplatforming (not censoring, deplatforming) hate speech is a good place to start.