How do you become an Atheist?

[Cando]

I'm sure many believe that they both are.

Are you implying that many people believe that both the bible and the quran are the word of god? Do you personally know any Islamic Christians, or are you just guessing that there are plenty of them around?

Of course I'm implying that there are many people who believe they both are. That's why I said it. Go to a mosque, ask a muslim f they believe in the bible, and they will say "yes, and islam is the next and final step in god's revelation". They will also tell you that in islam, there are 144,000 prophets. The first is Adam, the penultimate (second from last) is Jesus, and the last is Muhammad. It is a myth that islam and christianity are worlds apart. A fact that is clearly unknown to you.