Demons do not exist, there is no 'supernatural'. Those are silly beliefs from ancient times, when people didn't know better. Nowadays we have science.
Your response is indistinguishable from a bot, but in case you aren't one: 1. You obviously didn't watch the video. 2. Science can't answer philosophical questions like “Why is there something rather than nothing?” 3. The bedrock of science is an orderly, intelligible universe, which an atheistic materialist worldview cannot provide. 4. You must reconcile how believers, e.g., Georges Lemaître, have influenced modern science.