Some teenager watching the latest game of thrones (or whatever's hip nowadays) because their parent doesn't subscribe to Sky, or because they were out when it was on, isn't really the same thing.
On the other hand, I feel that creating and/or distributing CSAM should result in instant death for the creator.
[1] https://en.wikipedia.org/wiki/United_States_v._Solon
EDIT: Creating and/or distributing.
Bluetooth keystroke-injection in Android, Linux macOS and iOS:
https://news.ycombinator.com/item?id=38661182
These laws which criminalize viewing or reading things need to go now.
It is not acceptable to prosecute someone for the act of viewing a web site, regardless of it's content. Doing so is absolute totalitarianism.
In a free society, people should be able to browse any part of the Web without fear of punishment, it is fundamental. That includes exploring the darknet, one of the most interesting parts of the Web, without having to fear prosecution for unintentionally coming across child pornography.
I can only fathom "viewing illegal streams" leading to arrest in the case of CSAM. Regardless of any staffing or resources, it's a complete travesty to arrest anyone for using their internet connection to view lawfully produced content.
The power to restrain the physical liberty is a substantial corollary of the state's monopoly on violence, which should be employed when those arrested are a menace to other peaceful citizens.
I could see law enforcement getting involved in copyright crimes committed by commercial pirates, issuing fines to consumers or identifying them to the rights holders who can then seek redress in a court of law.