So if a person kills someone in self-defense, aren't they essentially acting as God by taking the life of their assailant?
If you use lethal force to stop someone who is attacking you, I don't believe so. But if you shoot him again after he no longer presents a clear threat, then you very well may be.
But that's just my opinion.
No.
C'mon, to suggest that one supress the natural, in-borne urge of self-preservation in the face of a clear and present danger just to stay "consistent" on this issue is silly and you know it.
It's equally silly to make the quantum leap from agreeing that it's morally sound to defend oneself when attacked to it's quite okay to kill another human being in a contained, antiseptic, state-sponsored manner when other remedies that fall short of state-sanctioned murder exist.