Plagiarism, where you take another's ideas or work and pass them off as your own is a different act than stealing (or copying) something for your own enjoyment. Neither are acceptable, either morally or legally, but there is a difference between the two.

As well, you are acting as though this thread of conversation is trying to justify one while demonizing the other. No one has made any kind of statement at all justifying copyright infringement. I don't understand your accusation in the context of this thread.