Apostate Muslim's account of Islam

In an essay posted at VFR Evariste explains why he ultimately rejected the teachings of the Koran, and with that rejection the Bible itself.

There are a lot of insights to be gleaned from Evariste's lengthy essay, so I recommend that you read it ... more than once. Certain Muslim beliefs are not common knowledge among Christians. I know, for instance, that I've been confused before on exactly what issue Muslims have with the Biblical account of the sons of Abraham, Isaac and Ishmael. Particularly whether Muslims believe that Ishmael was the actual "son of promise." Which brings me to the point of this post, something Evariste states in his essay:

It's really an Arab supremacist religion that. Both the Arabs and the Jews are Semitic peoples with many resemblances, and Arabic and Hebrew are extremely similar languages, sharing an identical basic structure and much vocabulary, so I think there's a case to be made that the Arabic rage and fury against the Jews that manifests fully in the religion called Islam is actually an echo through history of the story of Cain and Abel, writ very, very large.

Yes, I suppose one could, more or less, accurately describe it that way; Cain angrily bludgeoned his brother Abel to death because of his outrage over the fact that God respected Abel's sacrificial gift but did not respect Cain's. But I think there's a better biblical accounting which more accurately describes the genesis of the sibling rivalry between Arabs and Jews. Namely, Genesis chapters 16, 17 and 21. It seems that the descendants of Ishmael came by their hatred for Isaac and his descendants honest, and that nothing will ever serve to satisfy them that their rightful inheritance, as descendants of the first-born son of Abraham, was not stolen from them.