Correct.
It is not difficult to determine. Just follow history beginning with Muhhammad and the three Mecan Wars. From that point on it was about stealing from others and forcing others to become Muslims.
Now just fast forward to Islam today and ask what great leaps has Islamic nations make today? The damn rag heads wouldn't even know about oil or how to drill for oil if the Americans, Brits and Dutch didn't teach them. 95% of Muslims in the world live in abject poverty today. That is the height of Islamic civilization.
Having lived in the ME, muslims were always the lower class society.