I agree, but someone will say fake child porn.

I'm not saying fake child porn should be allowed or not-allowed, just showing there exist possible exceptions and rationalizations for them even without two parties.

Fake CP is a victimless crime. It is debatable if victimless "crimes" (like being gay in your own home, which is illegal in way too many countries; or eutanasia; or eating pineapple pizza) should be punished at all.

I understand moral panic, disgust, etc, but rationally speaking.