Atheist is not an ISM; "ATHEISM" DOES NOT EXIST, ONLY ATHEISTS. THAT IS TO SAY, IT HAS NO DOCTRINE OR PRACTICE, ITS SIMPLY A DISBELIEF, THUS, IT HAS NO ISM AT THE END OF THE WORD. JUST LIKE THERE IS NO THEISM, THE ISM KICKS IN WHEN ONE PICKS A DOCTRINE TO FOLLOW. TO AN ATHEIST, GOD DOESN'T EXIST, NOR SHOULD THE WORD ATHEISM.