How do you justify Anarcho-Capitalism?

Doesn't everyone see what problems come about with unregulated business? Doesn't anyone see what shitty things businesses do to edge profit?

Economics is a science, albeit a soft science.
That's playing so fast and loose with the word "science", it might as well be meaningless.

Economists can call it a science all they want, but it never was, it isn't now, and probably won't be for quite some time to come.