The USA is not a third world country, not yet at least.
Nav aids don't get turned off simply because a controller feels like it.
I'm too lazy to look it up right now but there's a couple of things you accept responsibility for when you accept a 'Visual clearance'.
Airport in sight yadayadayada all that jazz.
If you're not comfortable then do not accept the Visual approach clearance.
It's done to make the controllers life easier, not yours.