What is the point of arguing about ethics?
>I know you just murdered my whole family and stole everything I own but according to this philosophical argument what you did was objectively wrong. Heh, I bet you feel pretty stupid now.
>Oh you don't believe in objective morality? You wouldn't mind if I stabbed you in the neck then?
>You do mind? You're being hecking inconsistent!!!!!
>No you can't rob me! That goes against my metaethical framework! Stop it!