I’m not even sure that IP being owned by non-natural persons is the problem, for example I could see a coop collectively owning copyrights/patents relevant to their work. The problem is the frankly ridiculous amount of time granted for copyrights and obvious methods being patented.

Change both of those and you keep the benefit of innovative individuals/small groups having legal protection from large corporations muscling in and stealing their work and get rid of most of the damage done by the current system.