I think the solution is to have Koreans own and run these stores. Korean sales clerks, and Korean security guards at the door. Unfortunately, no shotguns allowed behind the counter but swords and knives will suffice. Shoplifting will disappear.
The Koreans famously defended their stores during the 1992 Los Angeles riots.
The California governor at the time was a Republican. And Democrats were more moderate back then. Unfortunately, things are far different in blue states today.
Any rooftop Korean who tried to defend his store today would probably be charged with brandishing a weapon if he didn’t fire his gun, and murder if he did.