I agree.
There was some looting in my small midwestern city on Sunday night, a dozen or so stores had windows broken and some graffiti. Today, you’d swear it was south Florida and a hurricane bearing down, half the stores at least are boarded up as a preventive measure against more rioting.
I got to thinking which would have been more effective if I was one of those store owner - to hire contractors to fasten 4x8 sheets of OSB over all my windows, or to sit in the brightly lit front of the store, in plain view from otside right behind those windows, with a 12 gauge pump across my lap...and a few boxes of shells beside me.
I still say the active denial system is the perfect non lethal answer.