Muslims have replaced gays, blacks, and the Japanese as the new enemy. It's easy to point the finger at someone else in order to compensate for our own flaws. The Koran indeed holds a load of horrors, but so does the Bible. It's far more convenient to quote Surah 9:5 than Judges 19:25 because one of those books belongs to the Big Bad Them, and They are coming to get us.
The truth in the matter is the fact that Muslims often come to the West seeking moderation and freedom from societies that have bastardized their faith. Quakers and Mennonites and Jews have all come to America to escape religious radicalism and bigotry. Muslims who grew up in Iran and Syria have witnessed their religion used as a weapon against those with more open minds. America seems more like home than what their former homes have become. At least it did, until a demented propaganda-fueled segment of society saw the world change and them left in the dust.
There was a time not so long ago that Americans were controlled by scared men. Thousands of people of ethnic minorities were sterilized in Virginia under the guise that whites were ethnically and morally superior. People of Japanese heritage where taken from their families and Eastern Europeans were incarcerated as possible spies. Women could be forcibly raped and beaten by their husbands and gays were lobotomized. These horrors and more are stains on our past, but today's neo-cons seem very in love with the same ideals that inhibit progress and oppress citizens.
Building the Cordoba Center might not be wise, given the appalling political tenor of today, but the right to do so is ingrained in the constitutional documents referred to by the segment that wants to have the right to own rocket launchers. Hating a man because you believe him to be an inferior is contrary to a document that precedes the Constitution by a decade. The Declaration of Independence was indeed controversial, but held that the new union was to be different from the totalitarian monarchies. Moreover, the First Amendment to the Constitution guarantees freedom to worship whatever metaphysical overseer the citizen chooses.