Mainstream science holds that our universe originated with the Big Bang. A fundamentalist from one of the monotheistic faiths believes we were directly created by God. A number of people dip from both science and religion, believing God initiated the Big Bang.
If you think about it, these explanations can’t really “make sense”. They’re so far out of the realm of everyday reality, it’s impossible to have a good intuitive feel about what explanation is most likely to be right.
This is why we have to make the best possible judgment with the incomplete information we have. If someone thinks they can apply Occam’s Razor to the origins of the universe, they are dogmatic, don’t understand what Occam’s Razor is, or both.