Most people are TAUGHT to hate. This is true whether or not one is discussing Muslim fanatics or anti-religious zealots.
Many of the posters on these boards who blast religions for all the "evil" they have done sound as if they were all schooled in the same classroom, using many of the same arguments and "facts" to justify their biases.
Indeed, they exhibit as great a knowledge of religious history as that greatest of twentieth century theologians, George Carlin.