Alcoholism is a disease and yet if you are drunk behind the wheel and mow down a pedestrian, you’re charged with DUI, vehicular manslaughter, because drunk driving is illegal, because running people over is illegal. The fact that you have a disease doesn’t negate the fact that you broke laws.
So too if your compulsion to sexually assault children is a disorder…once you’re caught with a child, you’re charged with a crime. The fact that you have a disorder doesn’t negate the fact that you violated laws. Saying it’s a disorder won’t protect you. Hiding behind the Roman Catholic Church won’t protect you.