It is, but it requires a paying population/funding source; American cities today demonstrate what happens when that also disappears. Neighborhoods look like Mogadishu, where nothing is maintained or fixed; not an ideal environment for operating a business. In the end, they turn on their businesses when their working (taxpaying) class has fled, and suck them dry paying for everything for the gibsmedats.
It is happening statewide here in NJ; every Welfarian (native or imported) climbing on the wagon chases away another American pulling it.
The funding source is the American taxpayer. And until Trump, I’ll bet Wally never thought they’d have a problem getting Uncle Sugar to shell out.