Many today consider Internet access to be a basic necessity as well... is it ok for service providers to censor opinions they don't like? Because that's happening too.
https://www.eff.org/deeplinks/2023/08/isps-should-not-police...
I think you might be dwelling a bit too much on their specific analogy, I don't think their argument should be so easily minimized in scope with things such as "basic utilities don't count" etc., which is also just a subjective opinion as well.