A leap of faith
“Atheism” is a belief that requires a leap of faith just as religious belief does.
An atheist like all other human persons possesses only a finite knowledge of the universe and cannot say that a “God” does not exist.
Thus the question is what position has the stronger evidence. Please don’assume that science is the only sound epistemology.
You say that atheism requires a leap of faith. That might be true for someone who categorically stated that God does not exist, but not all atheists believe such a thing. I disbelieve in God because I see no compelling reason to believe that such a being exists. Would you agree that this requires no leap of faith? If not, then what faith are you saying I have?
I don’t assume that science is the only way to understand reality. However, I would insist that any additional methods of gaining knowledge be compatible with science.