That video is typical nonsense.
"Question everything" means confuse everyone.
She damns the White Helmets because they are funded by the US, UK etc: that sort of "criticism" only hits home with people like Jeremy Corbyn for whom those countries are the devil incarnate. Sounds like a plus to me: and they "have weapons and stand near victims" - er, well, what is exactly is that supposed to mean?
There is a whole misguided/malevolent (depending on how kind you want to be) media circus of propaganda designed to rubbish anything the "west" does, despite the blatant fact that the war in Syria is the doing of Assad and of course his enemies fighting back.
As a Labour MP rightly said last night in parliament: the "Stop the War" protests outside parliament yesterday should actually have taken themselves off to the Russian embassy to protest there. But of course, that would be a bit naff for trendy, ultra left wing protesters.