There are a lot of sides in Syria, a lot of of "ideologies" involved, several (defacto) ethnicities involved. There are varied religious, cultural, ethnic, and political angles at play. There are volunteers from all over the world coming in to fight for their favored sides. Foreign states sponsor and cheerlead for their favored sides.
I have a foreign coworker who was "studying abroad" in Syria in 2011, before the worst of the fighting began. He is white, but studied (and speaks some) Arabic. I'd think he'd have insights into the conflict, but he is one of those (i.e., the great majority) who waves the Syrian War away as "rebellion against a dictator", which is a narrative that I don't find compelling, from all I've read.
Maybe it's hard to understand a locale's "politics" (broadly) just from within that locale.