It's not stealing if you want to back up your purchased content or strip the drm to put on another reader. Piracy entails sharing and/or making profit from it. Actual piracy is such a low percentage that content providers would save more money by not fighting it and just leaving it alone.
it's not stealing as the original is still intact, it is only copyright infringement. If i were to copy a corvette for myself and not for resale, there is no issue. So why if i copy a book there is an issue? yeah, that's called a double standard. pass.