Aren't you approaching this with the old YEC spectacles on ? In other words, adopting a definition of Christianity that to be a true Christian, every word of both testaments must be believed to be absolutely true ?
It is entirely possible to be a devout Christian, and to embrace and celebrate every step forward in mankind's scientific knowledge. My mother has a first class honours degree in biology and genetics - accepts completely current evolutionary and genetic science - and is an extremely devout Christian.
There's a whole panoply of Christian faiths and beliefs, many of which have significant subtlety, richness and depth. To reduce them to a simple binary choice of "100 % truth or not" does a huge disservice to the faith and intelligence of many, many Christians.
Could there be any greater conceit, than for someone to believe that the universe has to be simple enough for them to be able to understand it ?