Science doesn't answer the question of when, where, how what be know exists began. If everything we know to exist has a beginning, how did it begin if there was nothing before it? The only explanation I have found is that someone or something has to exist outside of our understanding of time and space.
Belief that there is being who set what we know to exist into motion is not an ignorant assumption. It's a very natural one.
Whether or not we believe that the being is the God of the Bible is a personal decision. That decision is not so much a physical, mental or emotional choice; it's a spiritual choice, a deeper level of understanding. There is no reason to deny anything in Science in order to go there. If you don't explore the spiritual part of you, fine. Saying that those who do are crazy or ignorant is short-sided, narrow-minded and makes you look ignorant. I am thankful to have met a few here who would not see that search as ignorant, but natural. I respect their conclusion, their choice, and they respect mine.
JMHO