I've explained this plenty of times for the legal case against social media for the cushy lifestyle that are able to employ with the protection of Section 230 of the CDA.
You are either a utility - such as a telephone company - where you aren't held liable for the actions that are done over your lines of communication. You are just the person connecting person A to person B. You don't monitor or censor what is happening over the lines of communication, because you aren't liable for it.
OR - You are a publisher. Someone that publishes content, articles, etc... and ARE liable for what is published on your platform.
Why is a TV channel - newspaper website - magazine, etc... potentially liable for what they publish, but social media isn't? Why are they also deemed a utility for protection, but they are able to have teams of thousands of HUMAN people that are determining if content is appropriate in their human eyes or not? (Hint: Unbias humans simply do not exist).