Time to once again post the “You are Wrong About Section 230” article: https://www.techdirt.com/2020/06/23/hello-youve-been-referre...
In particular, see the very first bullet point: Section 230 makes no mention whatsoever of a publisher/platform distinction. People like you appear to have invented this dichotomy out of whole cloth and attached relevance to it which does not actually exist.