re ''lesser muslim brothers'', no, I see faith as a matter between you & you God, and not an interacial matter.
Having said that Arab supremacy & racism does exist within the sciptures too
Tabari IX:69 - "Arabs are the most noble people in lineage, the most prominent, and the best in deeds. We were the first to respond to the call of the Prophet. We are Allah's helpers and the viziers of His Messenger. We fight people until they believe in Allah. He who believes in Allah and His Messenger has protected his life and possessions from us. As for one who disbelieves, we will fight him forever in Allah's Cause. Killing him is a small matter to us."
Of course the Arabs were the first to respond to the call of the prophet, because he was an Arab living in Arabia! If a Native American was the first to respond to his call, now that would be a true miracle!
What is striking me as giving the Islamic religion a very "Arab" feel are the Jinns.
As far as I can tell, Jinns are a uniquely Arab feature to the religion. There is nothing like in Judaism, Christianity, nor any non-Arab rooted tradition I am aware of. The importance of Jinns seems to give away the Arab nature if Islam.
If I am wrong about Jinns, correct me.
Another strikingly Arab feature is the Kaaba and the Hajj. There is no real evidence that the Kaaba was anything other than an Arab pagan shrine and no real evidence that the Hajj was anything other than an Arab pagan ritual before Muhammad. All that stuff about Ibrahim is bullshit!