Statements like this are one reason why I took that self imposed vow of non-participation- it was always brought up, regardless of evidence, usually by the same posters. Which is why, after this response, I'll go back to that vow.
Copyright infringement is a form of theft by definition. As I've posted numerous times on this website in countless other piracy threads, the definition of theft in Black's Law Dictionary includes this language:
One of the primary benefits of IP- like any form of property- is the ability to control who can obtain it and at what price. By infringing on a copyright, you're "exerting unauthorized control" over the IP holder's property since you're not meeting the IP holder's conditions for transfer of the right to use it (IOW, you didn't pay him). You are "taking property without the owner's consent."