Evolution cannot account for morality

[Astreja]

I suppose what does not make sense is the fact that evolution exists in the first place.

Evolution is a side effect of organisms competing for resources. Any difference between two organisms will become significant if that difference provides an advantage in mating or finding food or avoiding danger. It's "survival of the {best fit for the current circumstances}": Slightly longer legs (better for running away), more drab colouration (better for hiding in the underbrush), and so on. The loser dies; the winner mates, and the advantage is passed on to the offspring. That's all evolution really is: A tendency for slight improvements to propagate to the next generation.