That's natural selection. It's so gloriously simple -once you see it. Dawkins saw it, and he helped a lot of other people see it too. Through his eyes biology is transformed, becoming the complex consequences of a battle between genes to get replicated. There is no designer, no plan.
Creation springs out of nowhere by the power of a mindless process.
Far from diminishing the world, for me this theory enriched it. I have never lost my delight in the evolutionary vision. But Dawkins ended The Selfish Gene with a new thought of his own. This dumb process applies to anything that is selectively copied. Ideas, habits, skills, words, stories and songs are all selectively copied when we humans imitate each other.