Off the cuff the closest example to mind is the Paedogeddon!! special episode of the Brass Eye series created by Chris Morris.

Admittedly that didn't satirize CSAM material, rather it cut hard into the reflexive reaction people have at the very thought of CSAM and peodophiles.

https://en.wikipedia.org/wiki/Paedogeddon

Moreover, that took a human to thread that needle, it'll be a while before AI generation can pass through that strange valley.