Downloading software, games, movies or anything else without permissions should be a crime. It is taking money away from the people who worked hard to develop and create such things. Downloading without permission is stealing, just like taking bread from a baker, and it needs to be treated as such.
Downloading shouldn't be a crime because if it was available to download, it is technically free and free to download. Instead, people should make it harder to rip CDs and steal content which will prevent the illegal download in the first place. Also, downloading isn't the same as stealing a car, downloading is duplicated and the original owner doesn't lose anything.