When someone is hell-bent on creating mayhem, only an alert and prepared populace is sufficient to stop them. No law, no ban, will ever trump the workaround.
The old Anglo-Saxon "hue and cry" .... worked like a charm back in the day.
Only a thieving, grafting, lying poltroon intent on mastering the People by propagating "quietism" and talking b.s. about "perfeshunal" policing and standing armies being necessary, would derogate people's ability to see to their own needs.
That's why Communists in Hollywood ran wild for years (think Dalton Trumbo, Ben Barzman, Burt Lancaster, Kirk Douglas, Will Geer) making movies that blackguarded people's efforts at vigilance and militia protection, and glorified professional killers like Wyatt Earp and Pat Garrett, and totalitarian fonctionnaires like Eliot Ness (and his wiretaps), as utterly necessary and the only way to secure law and order.