Hurricanes, tornadoes, earthquakes, etc shows that the tailoring for life was somewhat less than perfect.
The fact that you can recognize perfection, and imperfection, indicates an awareness that supersedes the system you live in. How is that possible?
Do you have any understanding of irreducible complexity?
Are good and evil real? Is there really such a thing as right or wrong?
If there is no supreme moral force in the universe, no judge of behavior, then all behavior is equally valid. Opinions as to what is right or wrong are merely that - opinions. You can impose your definition of right and wrong on others by force but they have no meaning.
I could rape you, and cut out your intestines and eat them raw while you scream and watch. If there is no supreme moral force who has fixed standards for behavior then the only meaning one can assign to these actions is that the strong overcame the weak and I satisfied my hunger. You can assign no real values. Well you can, but that is just your opinion. Frankly in a godless universe my actions would be "good". Survival of the fittest. This is where you try to argue that there is a different standard for cultures as opposed to individuals. Tell that to Islam which has conquered 20 plus countries in the last 25 years.
If there is no God then nothing has any meaning.
Atheists don't think. I used to not think a lot.