Actually 'Muhammed' certainly is mythical and not historical.
I've heard the theory that there were multiple Mohammeds. It sounded plausible but I haven't looked into it. We most certainly do know a lot more about his life and that he really existed than that of Jesus (who probably existed but is basically known through a few short gospels). But let me take a different tack then, as it's more to the point I was making: You can say you should emulate Jesus but other than being forgiving and occasionally losing it at people who lend money in temples, there's really nothing hard laid down that this means. Whether or not you dispute the accuracy of the Hadiths and Koran, the point is that there is a lot of explicit detail about his life that as a Muslim you're required to believe. And a lot of that material (slave trading, murder, wife-beating, child molesting) hasn't exactly aged well. Even if you don't believe he actually existed, the point is that the religion instructs those who do believe to hold him up as a representative of God on Earth to strive to be like. And that's markedly different to the very vaguely documented life of Jesus, true or false.
As for Muslims following Islam, it's not really different from Christians following the Old Testament.
It is different and I already explained why. I can repeat. The Bible isn't regarded as the word of God. That the Koran is, is a central tenet of Islam. The New Testament explicitly resigns the Old Testament to being deprecated, in so far as the Old Testament is other than a historical document anyway. A Christian can dismiss parts of the Bible as old Hebrew myth. Islam requires belief that the Koran was dictated by God. It's one of the most central beliefs of Islam there is. If you don't know this, then you don't know much about Islam.
That aside I don't believe the recomendation from this document states criticism of Islam is prejudiced.
This document, and I have read it, explicitly defines criticism of Islam as racism. So yes, it does. You should be against it if you don't like people conflating Islam with Muslim, as I don't.[/quote]