Right, but human rationality can be fallible, reasoning can be influenced by feelings, beliefs, experiences, morals, values, etc. Why do you think many countries that outlaw CSA also criminalize (to an extent) lolicon/shotacon and child sex dolls? You already knew that though. I found an article on human rationality:
A lot of people think that spanking children TOTALLY ISN’T child abuse, despite scientific research saying otherwise. Many politicians probably wouldn’t want to speak out about it for fear of losing votes or support. Same thing with virtual/simulated CP.
That being said, it IS possible to change people’s minds and some progress IS being made, but there’s still a lot to be done. Denmark, Finland and Japan are examples of countries that have outlawed real CSAM, yet virtual/simulated CP is legal.
Obscenity is another problem entirely. Like the USA, Japan has its own obscenity laws. In Japan, genitalia has to be censored (either pixelated or by using black bars), because uncensored genitalia is considered obscene, which the law defines as “arouses or stimulates the viewer’s sexual desire”.
However, now, Japan has a law that prohibits “online insults”, which can get you arrested. The law states that an insult is “publicly demeaning someone’s social standing without referring to specific facts about them or a specific action”. The Japanese moral police is little different than the moral police in other countries.
Remember the moral panic in Japan that was triggered by Tsutomu Miyazaki?
Honestly, with how things are going, it wouldn’t be surprising if Japan ended up banning lolicon/shotacon. It would be unfortunate for many people, but the moral police only care about their feelings, not others.
I think this is relevant here: