Just like https certificate authorities, the only way to fight all the AI slop will be "trusted" camera firmware that signs every image with a full chain of trust that the output was a real physical video taken will a real device at a real location.
Anybody could become a criminal if the crime is easy, undetectable, doesn't seem that morally wrong, and provides some benefit. So to deter the crime you need to change one of those factors. In this case, raising the difficulty bar.