Arrogance, self-centeredness, "militancy" (laughable when applied to elderly armchair thinkers who call for no-one's death) are all criticisms of humans and have nothing to do with objective reality.
But while we're looking at it,
> The idea that human beings are the end-all to reality, the highest form of consciousness and most powerful being, just seems hopelessly self-centered to me
It is hopelessly self-centered to claim that they were made in God's image.
It is hopelessly self-centered to claim that He made the world just for us, and put us above all animals.
It is hopelessly self-centered to literally centre the Earth, and have the Sun rotate around us.
The atheist position is that there's nothing special about us. We're a growth on a wet rock that's nowhere in particular in space. We lucked out with opposable thumbs and language and have been burning through our resources ever since. No intervening supernatural third party is coming to rescue us.