So... what happened firstly and what caused that thing and... PARADOX. We simply can't answer it. It's already a dead mystery.
Yes, religion can't really explain anything, because they don't even try to explain the origin of god.
I already posted about a study saying atheists are statistically more intelligent than believers.
But I didn't assumed that position. Most of the people who made our world up to the XVI century were believers. There have been brilliant persons who were religious.
On the Op, I wrote that "I don't have anything against a sincere believer. You are my fellow human being who share with me our finite condition".