Man, don't argue with these people. They have hate toward all Arabs for some reason.
The diversity of Muslims can be seen as a compliment to Arabs.
Love or hate something, the objective fact that it appeals to people all over the world from many different cultures is significant.
Arabs don't have a special place, and the role that Persians played is very well known, BUT, a sentence like this usually comes from people who want to dismiss Arabs completely. And the problem feels undecidable too. There were a lot of scholars. A lot of them spoke Arabic better than most Arabs today. You could find a lot of them have mixed parents and were raised in Arabs culture. How will you decide exactly?
It is a useless debate.