Let me say that I consider it initiation of force to take property which belongs to someone else and using force to prevent it would be justified.
This is true, but what the disconnect here is what defines property.
I've seen the result of intellectual property theft and I don't like it. The market adjusts and less people spend time creating things that are easy to copy, so the quality of those things are diminished.
This is not an argument in favor of copyrights. Your opinions on the quality of products are irrelevent.