Your idea is that Sunnis attaked us so we should help them achieve their goal of overthrowing the Saudis. That's just stupid.
Sunnis are 90% of the world's Muslims, even if you count Alawites as Muslim. A basic tenet of geopolitical strategy is to support the few (Alawites) against the many (Sunnis), the weak (Alawites) against the powerful (Sunnis) especially when land and resources are at stake.
I've never said anything about overthrowing the al Saud family. They are the only thing that stands between their troglodyte population and a terrorist-supporting Taliban state. The al Saud family are "moderate" in comparison to their population. I am saying that the al Saud family is doing stupid things in Syria that will boomerang on them, out of a misguided religious affinity with Syria's Sunni Arabs.