i think yes but he will deny it
As for you, you should be able outline exactly answers to two questions:
1) Why believe that God exists?
If you answered (1) objectively then
2) Why Islam and not Christianity or Judaism or any other religions.
If every Muslim started really asking himself as well as every atheist did the same and were able to Give an objective answer to (1) and (2) then religion would have been Objective or atheism would be.
Sadly, this matter is subjective so why would you be on either side? merely habit and habits come from culture.
You are a muslim, now you tell me how many muslims you know question things and really think about religion. How many people in el Sham take religion as a fact without even considering the grounds its built on. I am from Egypt and i used to be one of them and I am the only one amongst all the people i know that even has the guts to objectively think for a moment about the topic.
I see how people are blinded by faith everyday.