Well, let's just steer clear of any claim that the left doesn't have its own doppelgangers. There has been an uptick of illiberal leftism in recent years. 

I would say the left does a better job of policing its own feathered-flocker hangers-on than the radical right. And it can afford to - it's not pushing an unpopular agenda requiring the peasants to be distracted.

Putin too pushes a Soviet-transmogrified Russian Orthodox church. There's nothing special about Christianity that bigots can't appropriate its virtue as a cloak for their own dark agenda. The Devil often hides in plain sight where the lost sheep deep down want to stray.