IIRC the Uncles opened in 1971 and Blyly was there from the onset. Long predating the
current wave of liberal lunacy in SF although there was a different wavelet of such in then new SF. But older, now flagrantly unpC, standards, like Heinlein, still dominated the genre. I'd load my car with classics from both Uncles whenever I made it to Mpls; only its distance saved my budget. He respected his customers and stocked everything. Those who did this aren't worth the least of them. Tactically, respect their power. Strategically end them as Cortez did the mass murder machinations of the Aztecs.
Blyly has got to be old enough now that him personally defending his highly combustible merchandise was unrealistic. Confiscate all the wealth (Soros, etc.) behind the rioters and use that towards reimbursing their victims.
They also attempted to loot comic book stores in California.
This is about personal greed, not retribution or justice.