This must be recent. Niqab was uncommon until the revolution. It's deobandist/wahabi innovation.
Lol, I can assure you that in Aleppo, Damascus, Homs, Hamah, in 90s it was common.
Also because kurds say it doesn't mean it's something you should say. Should I say go around calling black people "ni¤¤ers" becasue that's what they call each other? Kurds who are racist, are stupid. Don't think their racism justifies being racist.
Islam is not a 'race', and in Syria, Kurds did suffer from Arabds, not the contrary. And extremist Islam is always accompanied with forced Arabization. For that reason, Kurds (and more especially Yezidis) did not like these people. For that reason, during the Muslim Bortherhood's revolt in 1980s, when Hafez Al Asad destroyed Hamah and executed thousands of Sunnis, he let Kurds in peace because he knew perfectly that no Kurds could be invoked with Islamism (at this time they were pro-Barzani or pro-Talabani or pro-PKK and pro-Communists).
I don't know if I'd distinguish the alawites from muslims.
Look at their women, they are dressed like Christians.
Their banding with Christians is a peculiar alliance of necessity.
Of curse, Allawis is a ruling minority (as Sunnis were in Iraq) and Christians found advantage under their rule. Kurds were less persecuted also, until 2001, when Azadî and Yekitî began their public demonstrations (in a time when PKK was still Bashar's ally).