I agree with non aggression. The fact that people think they have a right to strip me of my production because they can't physically touch it and can't recognize aggression when it's in their face is beyond me though.
I think you're under the mistaken assumption that producing X entitles you to own X but let's say you break into my shop, steal a bunch of my wood and then build a chair out of it. Do you own the chair because you produced it? No, it's my chair plus you owe me for damages to my wood. I collect wood, you see, and I wanted it kept in pristine condition.