I believe that many atheists are making rational arguments, but not all choices serve a logical purpose. A belief in God asks people to accept that they exist by arbitrary decree. No further patterns are required, whether they exist or not; to say that the cosmos came into existence, by means of the spoken word, is a matter of choice.
In the words of the Bible, people are known from the womb, they are foreordained, predestinated, and God chooses you. You can come to a knowledge of saving grace. You can't earn grace. Noone can force grace. It's afforded to you, as a matter of choice.
We know from the operational sciences that water will boil, apples fall downward, and the switch should turn on the light, but unfathomable absolutes are not properly the realm of science. Anyone can look at the same objective data and speculate as to it's origins.