MY Constitution does indeed allow for lawful protest on most any damn issue some moke wants to protest about.
YOUR Constitution, poster Lastamender, may very well allow for your type of protester to drag uniformed cops down concrete steps and beat 'em with an iron pole.
YOUR Constitution poster Lastamender, may very well allow your type of protester to smear their poo on the walls of the People's House, the seat of our governance.
On the other hand, poster Lastamender........... MY Constitution doesn't allow either of those things.
But you be you. In your own little world. With your type of protester.