No one is going to dump a few hundred million into developing a new drug if everyone can manufacture and sell it upon release.

You won’t sell it on the market because you have to produce it cheaper or at the same cost as the competition. You don’t have the knowledge to produce the drug efficiently, and you can’t learn that by looking at the end product. In a society without IP, the most important things are the optimised production processes, which will be kept secret. The rest can be copied because it will be more expensive to produce.

Without private property how do you solve that we both want to use the same resource at the same time for different purposes?

I’m talking about post-classical libertarianism, every state, and corporations with the backing of states, violate the private property of individuals. This happens in all countries because none of them is a post-classical libertarian country.

Rothbard and Hoppe are anarchists in the sense of no ruler, so no state is compatible with that philosophy.

I know that many anarchist use an-archos like no hierarchy, but i use it like without a ruler

Additionally i disagree that post-classical libertarianism promotes the freedom of corporations from accountability. It supports private property, so if a corporation harms your property in any way without your consent, it’s like any other individual.