I also don't care how it happened, or see why anyone would care deeply about how it happened, apart from pure scientific investigation.
You cannot go back in time and find out, and even if you can know for certain how (physically) we came to exist -- okay, that's interesting, but so what? I'm not sure what practical application it would have, it doesn't prove much from an existential standpoint, and there's no reason it should have any particular impact on the way you live your life.