There are lootings because police resources are tied up showing force against protestors, and people with bad intentions see an opportunity. The violence and property destruction is a separate event from the protest marches with different people engaging in these practices entirely. If I was one of the 70k people living on the street in LA, this would be a great time to stock up on essentials from a CVS on Capital's dime. However, I don't condone the looting of small businesses where owners have very little savings. Many of these immigrant run businesses that make LA unique don't have insurance, and many will fold after this inventory loss coming on the heels of two months of no income.