I don't believe that Muslims, unless they choose to come to a western country and actually live under the laws, can ever coexist in a democracy. Their religion forbids it. Their religion expressly spells out that they must have a theocracy. Now, it doesn't say they can't live under a western democracy, but if they are the ones establishing the government and the laws, there is no way that democracy can ever exist with within the confines of the Quran or Sharia law.
At the time, I did think Iraq was a good idea. However, like many others, I have come to the conclusion the Muslims are not like the Germans or Japanese, their ideology about Muhammad is too strong. They need a strongman to lead them. I really don't believe there is any other way with them.