Is there a God?
Is that really a sensible question?
When people argue about whether their conception of a creator, supervisor, intervener deity is both plausible and preferable to another conception, their point of departure is hypothetical - that such a thing exists ... even that such a thing is possible.
Isn't the question ... shouldn't the question be: "is wondering about things such as a creator/supervisor/intervener/judger entity sensible?"
The bible starts out with one of the barest assertions ever presented for mankind's consideration: "In the beginning, God created the heavens and the earth". It asserts this thing "god" without defining it, and without providing either evidence for it, or a sound argument that such a thing is necessary, possible, or capable of participating in the rest of the verse, let alone the rest of the chapter, book or bible.
At what point does that narrative become worthy of belief?