Assuming 331M people in the USA, 164M (50%) live in a metropolitan area of at least 1.6M people. 189M people (57%) live in an area with at least 1M people. 230M (70%) live in an area with at least 500K people.
My conclusion is that most Americans do live in big cities. However, even if all big cities have restrictive shelving practices, there are still 3 out of 10 Americans (outside of the 500K cities) that do no experience these practices.
I'm in an area with 4M people and have seen the shelving practices. So I can concluded that at least 34% of Americans (who are in larger areas) have also experienced these restrictions.
In Europe, places that have been swallowed up by urban sprawl like that usually stop being called as such given time - no one persists in calling Chelsea, Charlton or Westminster cities now they're well inside the London urban area, and I suspect the same will happen to bay area towns and cities over the next 200 years unless it undergoes a significant population decline.
The definition of an MSA is basically the "economic gravity well" of an urban areas. This is casually obvious just by looking at the nice green map they give you on that page.
If you think some guy 2hr northwest of Bangor or 3hr out of Vegas into the Nevada desert is in an urban area I'll sell you some beach front property in Arizona.
Petty theft does occur in Tokyo, and there's organized crime as well. You don't see this kind of organized retail theft because the police would actually investigate it, rather than do nothing and cry about "the crackdown on police rights".