Denying yourself short term pleasures is not slave morality but self control to keep you from being enslaved by feeling obligated to do things for pleasure
I do not think Stirner denies the existence of God
Reading or listeining to Stirner in the Ego and his own might be more time efficient than Nietzsche
Nobody has convinced me that Nietzsche taught anything worthwhile that Stirner has not taught in less words and more time efficiency
So I never bothered with Nietzsche
No land or resources are ever enough for them. They have to oppress and enslave other people and make those people labor for them. It's a crucial point of their agenda. It's in their religion.