I'm afraid Europol is shooting themselves in the foot here.
What should be done is better ways to mark and identify AI-generated content, not a carpet ban and criminalization.
Let whoever happens to crave CSAM (remember: sexuality, however perverted or terrible it is, is not a choice) use the most harmless outlet - otherwise, they may just turn to the real materials, and as continuous investigations suggest, there's no shortage of supply or demand on that front. If everything is illegal, and some of that is needed anyway, it's easier to escalate, and that's dangerous.
As sickening as it may sound to us, these people often need something, or else things are quickly gonna go downhill. Give them their drawings.