Most people would recognize the creationist position as one of faith. Yet, the evolutionary position is one of faith also. Evolution cannot be empirically proven. Evolution cannot be observed in the natural world today. It cannot be demonstrated in the laboratory.
Evolution requires chance without intervention of an intelligent being.
This does not mean that faith is or must be irrational. Even without absolute proof, one may study a question and conclude that it is quite rational to believe one point of view and even irrational to accept the opposing point of view. Unfortunately, rational, honest people can look at the same facts and draw very different conclusions. Look at some of the great unsolved cases such as the Lindbergh case or more recently OJ Simpson. Different people look at the same evidence and draw different conclusions.