The fact that I was born human.
Why do you wear clothes?
I would prefer not to.
Why are there seven days in a week?
The observed rotation of the earth and its orbit around the sun.
How do you know what is good and what is evil?
Evil is what tramples on somebody else's life or property. Everything else is good.
If everything came from nothing out of nowhere, if life is just a curious side effect of an unknowing and uncaring cosmos, if when you die, you are just so much compost, then why seek anything other than a life of self-gratification and a painless extinction?
Exactly.
Damn elk. You need a bath. This is a God fearing website, not a place to claim you are nothing more than a mutated fish.