I suppose that making an observation such as in the op and getting a huge brush with which to paint millions of people who identify themselves with the teaching of Mohammed is naive to say the least and provocative to say the most accurate.

It's a bit like quoting from pete of the seven stars and asking Joe Offer to justify it.

As Harold Wilson said of The Labour Party, "It's a broad church."

The blue eyed saints and rather European portraits of Adam, Jesus etc, just serve to show that unlike present day fundamentalists, Christians through the ages have been comfortable with their teaching at the parable rather than literal level.

Ditto Muslims. The various crusades and inquisitions meant the Age of Enlightenment and western scientific discovery weren't aware that the groundwork already taken place in Arabian and other civilisations had to he relearned. Back then, we were the Luddite superstitious terrorists and followers of Islam the rational thinkers...