http://pedofurjruaw4yxesvu72j2izjxihy65vjjnelckbdbd6jdpds2mghid.onion/extra/stop.html
This means images and film featuring children with the intent to be pornographic is considered CSEM.
It must also target real children, so drawings and fictional characters are not considered CSEM. CSEM is a growing problem. While you could point at the internets ability to traffic such content,
I believe a large player in this is social isolation, mental illness, and the degradation of ones self and soul that has affected society more over the years.