Atheism, Religion, God is Imaginary. A classic trope of a religious bigot is while they're denying people their rights, they claim their rights are being denied. While they are persecuting, they claim to be persecuted. While they're behaving colossally offensively, they claim to be the offended party.
Islam is no more unvaried than Christianity. Just as there are denominations in Christianity, Islam has its variations. Condemnations of all members of any given religion must paint with a pretty broad brush to encompass all the permutations. And I say this as an atheist.
The Golden Rule - As seen from Christianity, Unitarianism, Native Spirituality, Zoroastrianism, Jainism, Judaism, Islam, Baha'i Faith, Hinduism, Buddhism, Confucianism, Taoism & Sikhism. It's a global rule, folks.