It's copyright infringement, which is not theft, they're legally distinct in the eyes of the law. This is partly why the "you wouldn't download a car" copyright ads were so widely mocked.
It's fine that you think that way. But this is a discusion of the laws of the United States of America and ruling by American courts, not a discussion of your own legal theories.
The GP isn’t talking about some edge case legal dilemma that requires a lawyer or judge to comment. It’s already widely documented that copyright infringement is legally distinct from theft.