It's leftist atheists that are intolerant. Leftism is fundamentally driven by envy. Leftist atheists envy the religious because of their God advantage. Scientific studies show indisputably that religious people on average live longer happier lives, have more successful marriages, have more children, live in bigger houses, drive bigger cars. Envy does not want what someone else has, it wants to destroy what someone else has. Vanity leads to envy which eventually becomes hate. Leftists are evil.