Like do you believe that people can assault other people with weapons without knowing it was wrong?
If someone assaults somebody in retaliation for something they did to them or a family member where it’s unlikely they would harm anyone else many would argue that can be justified.
Can they beat their wives and not know it was wrong?
No we’re all taught from preschool on not to hit.
I’m pretty sure the MS13 guys that butcher people know it’s wrong they just don’t give a shit. I’m sure people who use physical violence to get what they want know it’s wrong but they just don’t care.
And they should be locked up forever with the rapists.