Islam is a culture which does not innovate, engineer or create anything technologically. They drive cars and fly planes only because they consume off of developed countries.
Were the world to fall to Islam, there would be massive loss of life due to war and starvation, followed by the various nations falling into primitive technology and primal culture as it was 1500 years ago following the fall of Rome.
you are mixing up Islam and Arabs.
Iran, for all it’s problems, has plenty of engineers and scientists...ditto for India, and Egypt for that matter. Of course, most of the smartest ones emigrate elsewhere.
But the corrupt dictatorships are the problem, and these dictators use Islam as a tool to stay in power.