Faith in science?
You say that atheists try to have as little faith as possible, but atheists have just as much faith as Christians do. Atheists have faith that science will eventually solve all problems. Atheists have faith that there will one day be a unified theory of physics. Atheists have faith that the origin of life on earth will be discovered. Neither of these things can be proven. I’d even say that there is more proof that God exists than proof of any of these things.
I don’t have faith that science will eventually solve all problems or that there will one day be a unified theory of physics. In fact, some questions are definitely beyond science’s reach because they either are not in the realm of science (as with questions about morality and ethics) or there is no way for science to investigate them (the question of precisely how life began on Earth may fit into this category).