This antiporn movement is more about control and censorship than protecting children.
I think this is the op ed being referenced https://www.nytimes.com/2020/12/04/opinion/sunday/pornhub-ra...
If you’re only demanding “statistical evidence, please” from the people questioning if something is really happening contrary to policies and procedures, you’re asking the wrong people.
PornHub has transparency reports tracking how many upload there are to the system, where they come from, how many uploads get removed, how the removals were detected (e.g. by your user report, detected by internal tools before anyone saw them, etc.) they also discuss and the automated systems and manual processes they use. It’s all rather sophisticated, including an AI train system that does age estimation to detect, previously unknown, CSAM material.