How could that conceivably pass constitutional law? The government mandating a private enterprise carry government propaganda seems to be the exact thing the 1st amendment is intended to prevent.
It seems there should be some discretion to me, for example if a politician is posting content that otherwise violates the rules, is it ok to ban the politician for the content of the post?
For instance, with the equal access to ads for politicians, it seems like it ought to be the platforms right to ban grotesque images of aborted fetuses or gunshot victims (with or without connection to a political ad). If a politician repeatedly violates these rules, it seems like it should be ok to ban the politician on the basis of the content violating the rules
PruneYard Shopping Center v. Robins
The problem is that “conservatives” have made their platform be one that denies basic human rights to protected classes and the platforms have banned such speech from both ends of the spectrum. If you want your speech or ads to violate the platform rules you are saying that not only does the government get to say “you must carry our message” but also it gets to dictate the rules of those messages