"I have never said the possibility of their being a god is zero"<quoted text>
I have never said the possibility of their being a god is zero.
But I will say it again that if there is , there has never been any
valid evidence presented of one yet. This is especially true with the god of the bible, it is near certainty that it is a complete fabrication. A god , even a dumb god could not have made as many "human" mistakes as Yahweh. It is within near certainty the bible was written by men and assembled by men who had "human" motives to subjugate command and control people , using it as a being a tool.
Replace "their" with "there", it works much better.