Earlier quoted context omitted.
Right, a Muslim scholar in Persia could be seen as a Persian scholar or a Muslim scholar. However, Arabs often end up looking at their contributions as Islamic Contributions, or rather Arab-Islamic dismissing non-Muslim Arabs. To your point, there were many non-Muslim Arab scholars.
My point isn't that there are many non-Muslim Arab scholars, it's that a lot of the greatest Muslim scholars at the time weren't actually of Arab origin. e.g. Ibn Sina and Al-Ghazali were both of Persian origin (although the lingua franca was Arabic). Islam was the catalyst of change in the 7th century, I don't see how that could be denied. Yes, it was predominately Arabs that brought it outside the Peninsula but the…
First the Jizya was not a Tax payed because they weren't Muslims. It was payed for everyone who didn't participate in Islamic military. Think of it like a Latino living in the US and paying a fee (passport fees, green card fees..etc) for not participating in US military. Non-Muslim benefited from the same as Muslims in terms of public social help. Secondly, Zakat can be sometimes higher than the Tax paid by non-Muslims. Depending on how much you own.