Yes, the first one is a wild idea. Fortunately or theories of evolution and for that matter cosmology do not depend on that assumption. "We don't know" is the correct answer - whether the universe came from nothing, whether its the only universe, whether the concept of "before the big bang" is even meaningful.<quoted text>
Or how about even wilder ideas like a universe out of nothing from nobody? Or life from non-life? Or microbes turning into men? That's some pretty wild stuff!
Life from non-life? Either its physically possible or its not. Nothing wild about that. We either find a naturally plausible pathway or we don't.
Microbes turning into men? That is a wild idea! But this one is supported by mountains of evidence, so like some other wild ideas - relativity and wave/particle duality, its not a crazy one, just one that your intuition has a problem with.