At some point we have to face down a culture in which not only the mob in the street but the highest judges and academics talk like crazies. Abdul Rahman embodies the question at the heart of this struggle: If Islam is a religion one can only convert to, not from, then in the long run it is a threat to every free person on the planet.
In a more culturally confident age, the British in India were faced with the practice of "suttee" - the tradition of burning widows on the funeral pyres of their husbands. Gen. Sir Charles Napier was impeccably multicultural:
"You say that it is your custom to burn widows. Very well. We also have a custom: When men burn a woman alive, we tie a rope around their necks, and we hang them. Build your funeral pyre; beside it, my carpenters will build a gallows. You may follow your custom. And then we will follow ours."
India doesn't have suttee any more.