Most of the people who get sent to die in wars are young men who’ve got a lot of energy and would probably rather, in a better world, be putting that energy into copulation rather than going over there and blowing some other young man’s guts out.

Meaning of the quote

In this quote, Alan Moore is saying that the people who fight and die in wars are usually young men who have a lot of energy and would rather be using that energy in more positive ways, like having intimate relationships, rather than going to war and killing other young people. He suggests that in a better world, these young men would not be sent to war but would instead be able to focus their energy on more peaceful and life-affirming activities.