Valve-turners, as they’re called, are criminals. While their efforts may conjure a nod in the direction of peace and harmony, these people are not Robin Hood. They are, as proven in courts of law as well as courts of opinion, lawbreakers.
Protesters deserve the right to assemble. They deserve the right to peaceably make their point. They do not deserve the right to tamper with infrastructure or other private property to try to make that point.