Yes, I agree with you that God can not be proven or disproven, no evidence for somethings non-existence gives no reason to believe it, one can not disprove a negative, a negative remains a negative until it is proven. There is no proof that Santa Claus does not exist, or the Flying Sphagetti Monster. My stance on respecting beliefs is if I can keep a straight face while listening to them, I will respect them.
Granted this has nothing to do with evolution...