It was a question. A valid one. You're probably right that OP didn't mean that, but it's valid to ask him what he thinks permissable enforcement would consist of.
I notice you completely ignored the real point. "Don't forget: 'intellectual property' is not real property; otherwise it would be covered under property laws and wouldn't need it's own." - thanks, AC.
OP has a very, very unique definition of ownership: "the right to deny use". I disagree strongly. To me, ownership is the right not to be deprived of something rightfully possessed. And let me clarify. By something, I mean some object with a physical existence; something which can be stolen and then you don't have it any more. Not ideas; not expressions. You can generate those, but you can't own them. If you could own them, you could lose them, but there is no power on earth that can deprive you of your ideas and expressions. Other people can USE or SHARE your ideas and expressions, but the idea they can deprive you of them is nonsense.
Making a livelihood from ideas and expressions that you generated yourself is a completely different matter from ownership, and needs to be addressed differently.