The OP is presenting a stupidly simplistic model of the problem, as though their regular middle class life ably answers the question of the role or threat of violence when demanding political change.

In a world they note of police, military and security guards, they're acting like whether this might have a reason is determined solely by whether people are planning to steal from a supermarket or not...while they're not poverty stricken or hungry, to boot.

Arguing "I simply obey all the laws" is real easy to do from a position of privilege.

Violence is never the answer is easy to say when it's not happening to you. Its also easy to say while you stand by as violence is done to others.