So if i understand you correctly, you are saying that there is No evidence that God exists and conversely non to prove that He doesn't exist. So your dilemma is, in truth you really don't know one way or the other. That would be the truth, would it not.
You go on to say that we live in a naturalistic universe (i agree) then you speculate that it does not require a deity for which you can provide NO evidence, no proof. Science does not fully understand how the universe functions, or how it came into being, or the principles of how it exists. Yet you can claim to know what it does or does not require, what is your evidence.
Prove beyond any shadow of doubt why it is irrational to assume that God exists and i mean real evidential proof that your supposition is true.
open to discussion