Back in the 90s I would have supported Section 230 because its consistent with the notion of free speech. Like setting up email protocols that rely on the fundamental honesty of the sender of a communication I'd have just assumed that everyone's fundamentally honest and wants to do the right thing.
Bitter experience has shown this not to be the case. I'm not sure I'd want to just dump the protections -- if nothing else it will loose a swarm of lawyers looking for prey (and by the Law of Unintended Consequences they'll immediately swarm on the wrong (easy) targets) but "something needs to be done". For now I just do the obvious -- I try to ignore Facebook and I certainly don't believe any of the 'news' or push poll BS that comes at me when I'm reading websites.