People in here are arguing about whether the government should be able to allow or disallow protests, i.e. "legal" or "illegal" protests.

I think Denmark has a good middle ground solution to this: Protests must be declared to the police ahead of time, so they know it is happening. Note that this is not an application or an ask for permission! You always have permission, you only have to make the police aware that you are protesting, so they can monitor it and ensure it follows law and order and doesn't turn violent.

Protestation IS democracy you fucking fascists.

Guys, I'm planning to cause a traffic jam, and you all are invited.

Oh wait, that's just normal traffic. Oh well, see y'all in jail.

It is not acceptable anywhere. This "in a democracy" bit is just taking away blaim from dictator who do this kind of stuff all the time.