Therefore any person of faith is logically unable to objectively analyse any theory or evidence that directly opposes their faith based position.
You paint with too broad a brush. Or, perhaps, your word choice could have been better. Most scientists are in fact people of faith. Most scientists have no problem, however, reconciling their faith with the facts that science has uncovered. Faith in a supreme being does not by itself disqualify one from being able to objectively evaluate evidence and come to rational conclusions about that evidence. Certainly there are people, Faith being one of them, who do not have that capacity, whose faith blinds them to anything that contradicts what they think the bible says. Fortunately, those people are a minority. Unfortunately, they seem to be able to make noise far out of proportion to their numbers.
Those who would sacrifice an essential liberty for a temporary security will lose both, and deserve neither. -- Benjamin Franklin