That's not how these "publishers" work. They don't rely on the ability to sell the final product to make money. What they do is charge the hapless and naive,

That's not how these "publishers" work. They don't rely on the ability to sell the final product to make money. What they do is charge the hapless and naive, budding author for the privilege of being published and various associated "services." i.e. They make money by fleecing authors who don't know any better.