It is hilarious to watch the news and see a President who claims the border is sealed and secure against ISIS and yet unaccompanied children can get across it. The children just don't count somehow to support the view that the border is NOT secure. The feds deny that radical Islamicist groups are the primary source for terrorism, and so a violent radical Jihadist who shot a bunch of people at Fort Hood screaming 'Allah Akbar!' and who recently asked ISIS to let him be an honorary citizen of the Caliphate was not a terrorist, and the shooting just 'work place violence'.
But those are just a few glaring examples of confirmation bias, a thing where people insist on putting what they perceive into nice neat little pigeon holes defined by an ideology or inflexible philosophy.
There is an old 16th century story of three blind men who are feeling parts of an elephant, an animal that they have never seen and have no idea exists, and one feels the leg and says it is a tree, the other feels the trunk and says it is a vine, another feels the belly and says there is a bolder above him. When told that it is all one great big huge animal they laugh and say the narrator is deluded.
You cannot show evidence to someone who refuses to accept even the remote possibility of the thing claimed. No mater how complex a life form maybe, like the human cell, and no matter what Darwin knew about the complexity of the cell and the impact were it overly complex, the atheist will insist it is all the product of unguided chance. No matter how finely tuned the universe the atheist will insist that it proves nothing and it isn't so finely tuned anyway.
So don't pitch your argument to persuade an atheist of anything. Speak to other theists or to the lurkers who just read and move on. The atheist is a fringe element cultist who has closed his mind long ago.
I looked up the definition of faith and it said: Faith can be defined as belief that is not based on proof.
Just realize that religion admits you have to have faith because as far as proof goes they got nuthin.