Not all scientists believe in global warming either. (They're wrong too) Not all scientists think the same.
However to say that "human beings are too complex to have evolved" is just daft. I'm sorry if that's rude. I don't think that facts work at convincing anyone with that delusion, so I won't bother trying to explain.
But just this...there is no conflict between believing in evolution, the Big Bang and supernatural beings. There are scientists who believe in all of them. I'm not one, but there are plenty. Jocelyn Bell Burnell, my scientific "hero" for instance, is a Quaker. But denying evolution because you think humans are too complex is just denying science. Sorry, but it is. 🤷🏼