Your argument is surprisingly strong to me. I think it poses a real challenge to atheists, the idea if they look through the lens of science that's all they'll see, they've a priori ruled out seeing anything else.

You come close to saying God is Being. Do you see God and Being as one and the same? If not, what do you see as the difference?

If I recall correctly, you add to Being a virtue like Love, enlarging the nature of Being, so that "God" is a more informative characterization.