Banning “hate speech” without restricting political speech is prohibitively difficult because of the target’s inherent subjectivity. That's the crux right. As soon as you decide that a certain kind of speech is "illegal", the goalposts shift to convincing others that speech you don't agree with falls in the illegal category. Even what seem like sensible categories like inciting to violence immediately get spun around…
You talk about how categories that "seem like sensible" ones get "spun around" too much for politics. So are you promoting no restrictions whatsoever ? How close to violence do you want to allow? How allowable is a specific threat before it is actionable? How much intimidation is allowed to influence "free" action in your mind in the name of preserving "free speech" before it has too high a cost of preventing "free a…
I agree with your sentiment to deal more with actual, not theoretical problems. However, I think there have been enough actual historical examples of abuses of power in free speech regulations that are self-reinforcing. This should create a high bar when considering any particular restriction. It’s not paranoia, it’s lessons learned.
So some restrictions? Sure, and the courts have indeed allowed some. But they are and ought to be well-reasoned exceptions with clear distinctions so we don’t end up with something akin to a thought-police.