"Lack of evidence is not evidence of a lack."
It's for all intents and purposes the opposite of how logic works, I'm supposed to give some credence to an idea with no reason to believe it because it's in the vaguest notion possible. I could bring up Hitchens' Razor and the response would be people trying to say that foundationalism (specific to theism) counters it when foundationalism is debatable and foundationalism based on a nebulous deity is worse than foundationalism predicated upon what stimulates our sense into perceiving specific things.