It is called "belief"
Everyone need to have some code of life, some belief to hold to, something to follow. For you it may be Darwin for me it is Religion in this case. As per the modern progressive societies and its code of conduct that you preach, allowance for falling for what you call "mumbo jumbo" is free will. A freedom of expression and to makes ones own choices.
So whats the big argument?
Sir, again, I've got nothing against you believing in what you want to believe.Heck, many Indians believe in flying and talking monkeys and holy cows and what not, which very often becomes the subject of jokes and rants.So what??All I'm trying to do here is just showing the inconsistencies of those believes.I mean ,come on, we know monkeys can't fly, or talk.So that faith is completely absurd.
The same is the case with creationism, there are just too many inconsistency in there.Believing in it or anything which gives you peace is perfectly alright, but you shouldn't reject the more plausible explanations just because they happen to contradict with your set of beliefs.Just keep an open mind, that's all I'm saying.