Whenever I read stuff like this I find it strange that as a species we do this and also kill each other in wars.
What's strange is acknowledgement of the possibility of scarce resources necessitating conflict is considered invalid criticism that needs to be silenced or given negative reviews by the majority opinion. But that's not really surprising when things like ascetic religion were created as a reaction to what is popularly called criminal or antisocial mental models of the world.
Bob: All I want is to stand tall, looking at the sun.
Alice: Your shade hits me, Bob. Prepare to die.