That law isn't about protecting Facebook or Google it's about ensuring that anyone can express themselves online without needing a highly paid lawyer and a protracted trial to do so.
It also isn't about publisher vs. platform, section 230 protects the Times from being sued for comments on their website same as for any bigger or smaller operation.
It's tragic how the powers that be in this country are trying to insert a lawyer into every transaction like it's a jobs program, and the infuriating part is that they are trying to convince people that it's for their own benefit.