I'm a big believer in constitutional free speech, but I certainly don't believe that laws or conventions should protect unbridled amplified speech; giving everyone a megaphone connected to everyone else's ear. Plenty of examples in history show how propaganda was intrinsic to installing and sustaining terrible dictatorships and cults. Sure amplified speech is fine in many instances, but naturally people will want to curb it when it goes too far. People and societies should definitely be free to curb it when it goes too far. They should not be forced to endure it.