That, and a person having a philosophy or religion I find erroneous doesn't make me genetically superior to them in any way.
In my view, if you're willing to die or see your children die because you believe God would intervene to heal you if it was his will to do so, you are nothing more than an unthinking fatalist seeking death and dressing it up with words of faith. We all die, eventually, every other Christian with an ounce of reason would look upon medicine as a mercy, and doctors being a part of the divine plan. You've simply decided what that plan is for yourself and are willing to invite suffering for that conceit.
The only worse belief to come out of Christianity is self-flagellation and other extremes of asceticism, where mortification is seen as purification.