Lets take a little break from politics and have us a real atheist conversation.
Personally, I’m open to the idea of the existence of supernatural phenomena, and I believe mainstream religions are actually complicated incomplete stories full of misinterpretations, misunderstandings, and half-truths.
Basically, I think that these stories are not as simple and straightforward as they seem to be to religious people. I feel like there is a lot more to them. Concluding that all these stories are just made up or came out of nowhere is kind of hard for me.
What is useful for me may not be useful for you. It may be useful for me to tell some sort of slanderous lie about you to all of your neighbors. I assume you would desire the truth in that sort of situation.
That is why truth is more important than utility. Utility is subjective. Truth is not.