Do the West Syriac speakers (down to about 5k in a few villages in Syria) consider themselves to be the same ethnicity as the East Syriac speakers (a couple million?) located in Baghdad, Tehran, and Chicago, USA? I attended Nestorian liturgies on several occasions, where the liturgy was in ancient Syriac and the sermon was in modern East Syriac (seemed like a mix between Arabic and Hebrew to my untrained ears, but pleasant to listen to) but I couldn't communicate with the people there well enough to ascertain whether they considered themselves the same ethnicity as the West Syriacs (or even the Chaldean Catholics; while ethnolinguists would say they are the same thing, anyone who has read a book like Lewis's "Multiple Identities of the Middle East" soon discovers that western categories of ethnicity, language, culture, and religion fall short to describe this complex situation).
I really enjoyed my experience in the Nestorian liturgies back in the day and wish they were Orthodox. The fact that they are not was made perfectly clear when one gentleman approached me, and when finding out that I was an Eastern Rite Catholic at the time, proceeded to tell me that the term Theotokos is heresy, the Virgin Mary is Christotokos, yada yada. I asked him why their patriarch signed a concordant with the Vatican then, at which point the conversation trailed off. This was in Yonkers, NY about 2004.