I think a better analogy is automobile laws. Yes it’s a pain to have your car inspected and registered over and over, and there are plenty of places where speed limits are frustratingly below what a driver could safely deal with, but in general these laws do protect people not only from themselves, but others, who are perhaps not so careful with their car.
Laws against murder are good too, but I think we all agree that a law against murder which defined saying mean things as murder would be over-broad.