In the US, there is a constitutional callout to the freedom of speech/expression. This has been interpreted very broadly historically speaking. It would and should be very difficult to restrict this. And in my opinion this is the way things should be.
The path to dystopia is really easy to envision and must be resisted imo. I don't want to see a day where you can be arrested, or worse, for saying you don't like the President when someone else can hear or report you, or because the govt are spying on your phone.
Yes, this does mean protecting speech that I don't like as well. Twitter has a "following" tab, as well as the ability to block individuals you don't like. Between the two, you have all the control you need to avoid content you don't like. I don't need some large, opaque company, government or cabal to decide on my behalf what I'm allowed to, or not to see.