So if you could get away with it, would you kill your granny?!
Or is there something inside of you which makes you feel uncomfortable about just the idea, even though in purelly logical terms the old lady is probably just a useless consumer of resources well past her breeding age so serves no useful purpose?
If there is that something inside of you (i.e. you’re neither a psychopath nor a sociopath) that too is Moral.
I agree with your point about externally defined and imposed “Moral” (which is really Morality or Moralizing), it’s just that most people also have their own internal Right-Wrong Compass (I suspect derived from one’s empathy) and that too is Moral and it’s not under external control.
mikegioia