You said " I'm not saying they should be implemented here ", why not, it works? The answer is that you think it is too barbaric to cut off Americans hands, but Afghani hands, who cares. This is the kind of attitude that gets the US hated around the world.
Actually, I believe the opposite. It's when Americas (the US) comes to a foreign government and says "You must do THIS" that gets the US hated around the world.
Do you believe that the US should go to Israel and tell them that they CAN'T go around killing Palestines? That Israel MUST give up the West Bank?
And you're going to LOVE us for this?