What you follow or don't is not the issue though
By claiming to be a Muslim the person by definition (that word again) is saying there are no Gods but Allah. But then their actions are saying they don't follow Allah either so no Gods
Explain to me what atheism is again?
Your logic is flawed due to your adherence to your version of religion. If someone claims to believe in god, even a particular brand, whether they choose to follow it to the letter is immaterial. They are theist.
According to the extremists, you don't follow their version of islam, does that make you an atheist?
