Coming back to the OP, I'm a bit confused. Maybe
@unseenmorbidity can explain it to me?
The quote asserts that the "White Helmets" are part of a destablisation effort in Syria. This would be an organisation that was created after the
civil war started, a civil war that started when the Assad government's forces opened fire on a pro-democracy rally and subsequently tried to claim down on nationwide protests with force? This would be the government that has relentlessly bombed civilian targets, abandoned ceasefires, used chemical weapons against the populace, stopped aid convoys helping civilians, reduced many cities to smoldering ruins, caused millions of civilians to flee, and a general situation that even if the civil war ended right now in the most civil and generally agreeable way Syria would take many decades to recover, and you're talking about some random organisation that isn't the government as being part of a "destabilisation effort"?
You don't think that a government engaging in all of those military actions against its own people is a destabilising move? What exactly can an organisation that didn't exist at the start of a civil war be doing during a civil war to destabilise a civil war?