[croissants]

That seems plausible. Still, I think the "exodus from cities" theory doesn't apply much to American cities outside of New York and San Francisco. Places like Philadelphia may have even seen a small uptick from NY emigration. But this is just a guess, it would be nice to see any statistics (I haven't found any).

[SamReidHughes]

Here in San Diego, for instance, we've generally had net inbound migration. It's pretty much the opposite of Philly, though, in terms of both coronavirus and violence. But it is an "alternate choice" backwater city, compared to SF or LA, kind of like the way Philly is to New York.