I certainly don't trust governments, whether they lean left or right, as they all have heavy biases and big money influencing decision making.
It would certainly reduce the chance people would say unsubstantiated and harmful things if it was enforced.
Btw we aren't discussing what an unreasonable person might do with that information, just whether or not a reasonable person might believe what has been said or understand it a certain way.
We can definitely solve for the egregious cases though and we can solve those before getting too hung up on the tough ones in the middle.
And just to be clear. You are always permitted to say true things. It's only when you say false things that we need these curbs. What I'm really talking about is curbing "false speech".