Collecting videos of death recorded as a voyeur vs collecting, producing, and/or paying others to produce sexually motivated torture content leading extreme suffering and death seem to be a few lightyears apart to me.
I'll grant there's some questions when it comes to cartel/isis/random browns murdering each other and intentionally making videos of it, but there's still that separation between apparent motivations of those collecting and those producing as compared to zoosadist/monkeyfucker content.