The same principle applies to shadowbanning... a telephone company cannot provide limited service because they disagree with a customer's point of view- they must provide complete service in an identical manner to all
The flaw with this is the telephone company gets paid by you on a recurring basis for service and the others do not. I am also unsure I agree with the public utility as an argument. While I disagree with welfare in its different forms as it is theft by threat of kidnapping and death from producers to fund, I in no way think someone on food stamps, section 8 etc, nor businesses that receive corporate welfare are public utilities. Leeches yes, public utilities no.
Leeches don't create public fora with the food stamps. The FAANGs did, on purpose.
Laundering doesn't wash away the taint of restrictions on government power, or money. Publicly funded fora are held to standards chicken Mcnuggets aren't.
Also, the FAANGs receive funding continuously from their market, in the form of data whcih they sell. It doesn't matter what form the continuing payment takes, it's recurring payment for the service.