Is this backed empirically? The argument you made is almost identical to the ones used for "grand theft auto is making kids violent!".
The analogy is not apt. You cannot compare image-based abuse of children with a video game. GTA is a legitimate form of entertainment, child abuse material is not. They are not remotely similar. This shows why analogies are almost never helpful and it's best just to focus on the topic under discussion.
You can generate whatever you want on your own PC, but if you try to use it for fraud or to share illegal material then you are a criminal.