"by allowing regulators to rethink Section 230 of the Communications Decency Act."
It's not within the purview of regulators whether he wants to "allow" it or not. Section 230 is an affirmative defense, a resource available to interactive computer services when someone attempts to hold them liable for third-party content or their editorial decisions to publish or remove. It isn't a tool that can be used for offense; that that's been tried many times before and always gets shown to the door by the courts.
Only Congress can change it, as they (stupidly) did with FOSTA.