I'm surprised that you think panaderia and Somali restaurant and independent bookstore owners are corporations, but maybe you only know suburban malls where everything is corporate.

The owners of most of the damaged businesses in Minneapolis are not corporations. You can see a partial list here: https://bringmethenews.com/minnesota-news/a-list-of-the-buildings-damaged-looted-in-minneapolis-and-st-paul

Riot damage is covered by some but not all business insurance: https://www.cnbc.com/2020/06/03/insurers-say-looting-is-covered-under-most-insurance-policies-for-businesses.html