What they need to realize is that once you give Tyrannical Control over to your leaders (governments, or BigTech censors), because you consider them benevolent today, it's foolish because they won't be benevolent forever.
Our founding fathers knew power corrupts, but today's 20-somethings seem quite unaware. They think we can create a system where all forms of "bad" speech are stopped. But the problem with that is you end up having to define "bad". My definition of "patriotic speech" might be your definition of "mean speech", so unless you appoint power-wielding dictators to make the final decision, the only solution is to just say everyone is free. Once you allow dictators they'll always become corrupt and self-interested.
The left thinks they're in a war against evil and meanies, but really the only opponent they're fighting is freedom itself.