I would agree if we see some meta-analysis suggesting this but the evidence is small towards the effect. The studies you state in other comments are inconclusive, are not the majority, and only show mild effects. This is not scientific fact yet and all evidence shows a mild effect at best.

Even if it did though they are still a pedophile. They are masturbating to child porn. We should not accept that as a positive thing and we should not support people who make child porn. These are the people who need to seek help most. If part of that help is jacking it to drawn child porn so be it but be it so under the care of a professional.

The fact that one doesn't offend only stops one from being a monster. A child molester, or child rapist. A pedophile is still immoral.

My issue is that child porn is inherently wrong. It is a fundamental negative whether drawn or generated. Some things are not about material harm they are about base morality. Sexualizing children is a fundamental wrong.

If the only thing stopping you from raping, molesting, or otherwise harming a child is drawn child porn you are not a good person. That is terrifying, and disgusting.

Lastly, our brains are neuroplastic. Anyone can develop a fetish through constant exposure to something in a positive sexual setting. Something may disgust you, say poop, but if you jack off to the thought long enough you will develop a fetish. This, unlike the claim that drawn child porn is helpful, is well known. Harm to children or not this creates more pedophiles. People who think of children in a sexual manner