I said the Saracens looked after Sicily better than any other power after the Romans.
Spain had more conflicts as Christian armies from Europe arrived and clashed with the Moors causing a great deal of friction that eventually wore out the Moors.
If that book is available in the library I will check it out.
Being a relatively young religion Islam was more like the early Christians and there was a lot of struggle getting established.
Without doubt Islam appears more virulent and intolerant than other religions but so were the early Christian religions compared to the modern Christian faiths.