Not this rational thinker. Just the human body is enough to make me understand that there has to be a creator.
If you really were a rational thinker, you would be able to assess the evidence for evolution of the human body (and there is a **** ton of it) and come to the conclusion that no creator is necessary.
And nature just screams design to anyone willing to pay attention.
So your "rational thinking" has led you to the conclusion that the only people willing to "pay attention" to nature are creationist religionists, while the many thousands of expert, qualified biologists, botanists, geologists, cosmologists, archaeologists, astronomers, chemists, etc are all ignoring nature?
So how do you explain the fact that all those scientists can present hard evidence to support their position, while you can only present Bronze Age superstition?
This is called the "argument from personal incredulity" fallacy. IOW, just because the toddler doesn't understand how their iPad works, doesn't mean it must be magic.