I play a mental version of what you list every time someone raises the "we should ban/disallow/make illegal..." concept.
Generally, I'm hearing this about topics where I'm in strong agreement. Yes, we SHOULD take action against these attempts to exploit our inherent logical weaknesses for the promotion of values we disapprove of (sexism, racism, hatred, violence, etc).
BUT...before I agree, I like to say "How is this different than banning speech/actions promoting something society generally favors but historically did not. Could the same rules have been/be used to prevent the end of slavery, to deny equal rights (including voting rights), to silence those complaining about abuse of power of raising awareness of injustices? Would the rules used to silence peddlers of lies like Alex Jones be used against, say, proponents of generally unpopular and uncomfortable opinions such as improved rights of life for animals, or polyamorous marriage rights? (The only commonality of those being that each has been used as an example by some of a concept treated as ridiculous on it's face).
And here's the thing - I _don't_ ask these questions to try and reach a "enh, guess we should just let everyone be a-holes and eventually it will work out". I want to find a legit answer. Sometimes I can't, but most of the time I circle around some concept that DOES make a difference, even if it's hard to nail down in words. I think that's important because while civilization has generally moved in a positive direction over time, none of that has happened by just waiting it out - people made a fuss, took risks, raised awareness. Governments, churches, media, and other social bodies hashed out opinions and decided what was right, what was wrong, and what was unacceptably TOO wrong. Knowing that these processes can fail does not mean we should give up on them, instead we should work harder to find better success rates.
We are not well equipped to handle societies at the scale we have them (see Dunbar's Number etc), but that does not mean we can't try to get better.
As a result, things like this tend to fall into buckets for me: "Yeah, good idea, but we should be careful", "I wish, but only once we figure out how to distinguish the reasons", "I wish, but honestly there are still too many legit points to remove this from discussion", "Nah, this is important churn to work through" and "Are you crazy? They are right and should be amplified, not silenced".