I used to work in digital forensics. If you'd seen some of the videos I've seen you'd be shocked.
For example, I dealt with an IIC case (indecent images of children) where the guy had all sorts on his laptop from bestiality to ISIS beheadings etc. But what really got under my skin was the bullying vids he seemed to have a thing for - perhaps because everything else I'd already seen many times previously.
There were maybe 7-8 of these videos and they involved teenage bullies stripping their victims and filming it to post online. Most were from Asian countries (mainly China) and a couple from Eastern European countries.
The 'least disturbing' one was a Russian one where a girl of about 16yo had her hands tied behind her by her classmates (she didn't resist and was laughing awkwardly) and they then pulled up her jumper and bra, exposing her breasts, and pulled down her jeans and underwear with the whole class laughing, including loads of teenage boys. She sort of bent over to try and protect her modesty and you couldn't really see her genitalia. But she went bright red and was clearly mortified.
The worst by a long stretch was a Chinese one involving seven bullies and a victim, all around 15yo. They pulled off all her clothes and two of them held her legs open whilst the friend with the phone zoomed in and out. The victim was screaming and crying and it was honestly one of the most unsettling things I've ever seen. And it went on for well over five minutes.
The video was about 6-7 years old at the time and the victim appeared about 15yo. I remember thinking that she probably went through the rest of secondary school, sixth form, and most of uni knowing that video was online and accessible by anyone. It was posted on one of those 'reality' sites that are uncensored and feature crashes/murders/terrorist attacks/etc.
I've never seen boys doing anything close to this cruel, and I'd personally much rather be beaten up than have an explicit naked video of me watched by all my acquaintances and accessible online for almost a decade. It was chilling how the bullies were all laughing and how they all shrieked with excitement when they managed to get her pants off (a separate girl had to hold each arm whilst another pulled the pants down).
I defy anybody to watch this video and nearly ten similar ones without concluding that girls can be cruel in a calculated way that boys usually aren't. It's basically psychological torture.