There is some truth to what you say.
But not a whole lot.
A super-center averages something like $75M per year in sales. When one opens in a given market, even one with a rapidly-growing economy, that market area doesn’t spend an additional $75M that first year on the type of stuff sold at WM.
Instead, most of those sales, probably 90% or more, are diverted from other retailers in the area, or possibly from retailers in adjacent market areas.
But an additional $75M just is not spent.
Don’t get me wrong. WM and the efficiency it brought to retailing and forced other retailers to emulate, has been an enormous financial boon to America, and most especially to poor Americans.
But it has probably led to a drop in total jobs in retailing, and also probably to a drop in wages over what they would otherwise have been.
America is like a snake eating its tail. Due to our deportation and destruction of serious industries many people can only afford to shop at WalMart.
Stupid free trade doctrine plus WalMart's Asian imports destroy decent jobs, so much so that those dispossessed (and their families) can only afford to shop there