ILoveTTATT2:You make an important point here. The ethics of the Koran are almost totally at odds with the ethics of Jesus. Liberal Christians have the sermon on the mount to fall back in while liberal Muslims have little else than a few of the softer verses of the Koran.
More importantly, IT HAS AN OUT. It doesn't HAVE to follow the Mosaic Law, which is absolutely horrible and at par with the Koran, or possibly worse. Islam doesn't have an "out", unless you consider the interpreters of the law, similar to Jews. Most interpreters of the Jews are extremely liberal, whereas the interpreters of the Muslims aren't.
It should be noted, however, that Sharia Law is based mainly on the Sunnah (alleged words and deeds of Muhammad collected over a century after his death) and not the Koran. To use just a single example: the Koran says an adulter(ess) should be flogged, while the sunnah says she should be executed. The problem is most muslims place the Sunnah OVER the Koran in cases of jurisprudence.
The reason this is important is because there has recently been a movement, usually dubbed 'Quaranist', within sunni Islam to trash the Sunnah and return to the Koran alone. Though I would rather just see both books trashed, I think we should do all we can to aid and abbet the Quranists. An Islam based on the Koran would at least respect the right of other religions to exist and it would end the death penalty for every offense save murder.
Quranism could be the 'out' that liberal muslims need to support their ideology and coexist with secular western democracy.