Religions are ideologies like any others, and deserve no special treatment. The rise of militant Christians here and Muslims in the Middle East is alarming. They continually attempt to impose their beliefs - which don't have a shred of evidence - on others. Rational people have the right and duty to try to stop this insanity spreading.
The idea that the other side can threaten our liberties and wreck our world, yet we shouldn't criticise them because it would offend, is outrageous. Religions are ideologies like any others, and deserve no special treatment.