The internet isn’t Twitter, people aren’t advocating for censoring the internet, they’re advocating for censoring a person on a digital service platform. If you don’t think you’d see people advocating for censorship on HackerNews then you don’t understand what HN platform is, because bans, downvotes, flagging, etc are all types of censorship.
If you don’t like the platform censoring you, go somewhere else or do what Elon did and buy the platform and change the rules for yourself.