The big chains won't run risky or unprofitable stores. It's the communities that will be hurt by this. Despite interest-free loans and over $100 million in federal funding, Baltimore still hasn't recovered from the 2015 Freddie Gray riots.[1] Moreover: government funding is a rather blunt tool, and directing it at a city tends to cause most of the money to flow to the nicer parts of town. That's what happened in Ferguson.[2]
Riots tend to widen the disparities, not reduce them.
The big chains were suffering outside of a handful of affluent neighborhoods in all cities even in good times, I don’t see why this wouldn’t be a problem. Margins are low, and consumers’ ability to spend is low, so raising prices might not be possible leaving closing down as the only option.
If you don't run a viable business, should your business continue to exist? Which one do you want, socialism or capitalism? In a capitalist system, failed businesses are allowed to fail and don't get free money from the government.