People can agree on what the law is, but they don't always agree on what is right. Sometimes a democratic government will zealously defend a law, war or principal that later generations of the same government will disavow.
Sure, and then they let the police arrest them because the sight of peaceful people being hauled off to jail for sitting at the wrong diner or on the wrong seat on the bus is the statement. It’s called civil disobedience; Thoreau both practiced it and wrote about it a century before the civil rights movement. What none of those people did was try to obscure the fact that they were breaking the law or evade the consequences. Their plan was to go to jail over and over again to make the injustice of the system constantly manifest. So how does this even remotely apply to the article, which is about trying to avoid legal consequences?
So yes, to answer your question, I think my political opponents should be able to protest. If the state doesn’t allow them to, I am fine with them using tools to protect themselves legally.
The line I draw this at is violence and looting from innocents.
It seems you phrased your response as a “gotcha” but I’m really not sure what point you’re trying to make?
1. If you're planning to commit arson you want to have encrypted radios to not get caught.
2. If you're planning a peaceful protest at a location somebody might commit arson you want an encrypted radio so you don't get unfairly punished.
I don't think anybody is arguing that (1) is desirable. They're arguing that the people involved with (2) shouldn't be punished for (1)'s crimes.