That was a good effort. Yes, I too thought to myself, he is portraying how we change as we grow up and see the world as it is, but, it is also true that the world is a much uglier place than it ever was before - think of the worst of the past, and it is like the innocence of savages, compared to the evil of today.

Any people who can plan and execute such plan to kill off seven billion people (and they are succeeding), prove that you are seeing correctly in your poem.