If a monopoly on shoe production went out of business, and afterwords, everyone was

[Modern Mountain Man]

shoeless...? ....Would that be proof that we need a shoe monopoly?

Or would it just be proof that we need shoes?
Yeah, but they would still be shoes provided by a monopoly. And would therefore suck and be expensive.
I don't know, let's assume all of their buildings blew up or something. It's not really important.