Can an Atheist know anything?

[Nineteen]

Atheists do nothing in the name of atheism; it's not a system of beliefs under which to unite. Islam, however, is. If men are beheading others in the name of Allah and doing so in accordance to the holy Quran, then this is certainly your problem, Nineteen, for this is all part of your wonderful religion.

Atheism is a belief system and I could blame all the atheists because of one atheists . I can say Pharoah was a bad person because of he was an atheists , I can say the same thing for Stalin , Lanin , Mussolini , Hitler , Mao.... etc ...
They were bad people because they were away from religious moral . Dont worry I can keep it a sheath in any way .

If a man beheading other in the name of Allah , this is not the problem of Allah . You can kill yourself in the my name or you can steal a car to me as a gift .This does not make me a criminal , criminal is you , you chose to be a criminal . You said Nineteen wanted me to steal a car when the police catch you , and police ask you about an evidence to blame me . In the same way I'm asking you for an evidence from Quran that Allah wants muslims to do bad jobs ?

I'm sure you understand me very well .