Incorrect. All Western Scholars already know this, if they studied history.

Just a starting point for you, since you are lost on the subject of where Islamic script and language actually came from. Came from Petra, came from Nabatean culture.

"Similarities between late Nabataean Arabic dialect and the ones found in Mesopotamia during the Neo-Assyrian period, and the fact that a group with the name of "Nabatu" is listed by the Assyrians as one of several rebellious Arab tribes in the region, suggests a connection between the two.[2] The Nabataeans might have originated from there and migrated west between the 6th and 4th centuries BCE into northwestern Arabia and much of what is now modern-day Jordan.[2]"

Not only did King Malik steal the deity names from them and give them to the wives of Muhammad, not only did he stop honoring Petra after he realized he didn't have to and starting building all his Mosques to face Mecca instead, but he also stole their script and writing, which came from that tribe called the Nabateans. They had no written system before that. All stolen from those people.

A swift Google search for "Where did the Arabic language come from?" leads to that information. So, I am not sure what you are getting at. Arabs had no written system before roughly 800AD.