By "genuine Muslim opinion", I meant the opinion of an actual Muslim. I doubt The Idea will find such a poster on this forum. But there are a lot of lurkers, so who knows?
Gulliamo,
The Quran isn't necessarily the final word in Islam. There are many sources for disagreement, and interpretation of poetry is only one of them.
As well as the Quran, Muslims use the sayings and actions of Mohammed as recorded in the Hadeeth. Without access to those, Muslims wouldn't know (amongst other things) exactly how to pray or exactly how to perform their pilgrimage.
However, they don't all agree on which Hadeeth are genuine. There are even some that regard them all as suspect, and use only the Quran.
That is why you can get stoned for adultery in Nigeria, but not in all Muslim countries. The Quranic punishment is supposed to be flogging. Which implies that either the Quran has been changed or the prophet ignored it.... that's religion for you!
I think that it's mostly the Shia that regard the prophet, Imams, etc as infallible. There are plenty of Muslims that regard the idea of clerics as a little too Christian. In theory, any Muslims can lead the prayers in a mosque.
I don't know how many things there are that all Muslims would agree on, but I think that the status of Jesus is likely to be one of them.