Part of the Murthy v. Missouri challengers' claim is that the First Amendment bans the government from even "substantially encouraging" private entities to block user speech. And as I noted in the post below, I appreciate the difficulties with this claim (though I also appreciate its appeal).
Here, though, I wanted to repeat one narrow observation that I had made some time ago. I'm not sure how far it goes, but it struck me as worth noting.
Consider this passage from the oral argument by the federal government lawyer: