Atheism is a religion.

[Mister Agenda]

It doesn't take science not to believe in deities, just a recognition that the people who propose them can't give you a rational reason to believe they're right. The number of possible entities that can't be disproven is infinite, and for every one, you can propose an additional entity whose existence would preclude the other one. It would be irrational to provisionally believe them all, and at least equally irrational to select one out of the infinitude to believe in when it doesn't have any more evidence going for it than any of the others.

And it is absolutely a scientific position to not assume unevidenced entities.