That's true in the case where there truly is no evidence in support of either side. However, that is not the case here. Refusal to accept evidence or the conclusions drawn on the basis of that evidence does not mean that such evidence does not exist. Any belief or theory is supportable only in proportion to the amount of evidence on its side. If there are competing beliefs and the preponderance of evidence stacks up with one of them, the beliefs are no longer co-equal.
Personal preference is no substitute, nor is it an argument in favor of either side.
This doesn't mean people don't think they have evidence which supports their beliefs. Nearly everyone who holds a belief does so because they think the evidence shows it to be the best belief. But that doesn't change the fact that if there is no conclusive evidence, one way or the other, in support of a belief, it is purely a personal choice. I do not give creation science any weight whatsoever, nor do very many other Christians. It does not qualify as true science or true religion.