As I have pointed out ad infinitum, the best attack vector …

As I have pointed out ad infinitum, the best attack vector when dealing with what now passes as "the left" is drilling into the idea that they are revolutionaries when they are clearly on the side of the system.
Borg who self-identify as Jedi Knights, essentially.
But it took me a long time to come up with a name that encapsulates that:
Regime supporter.
Well, I didn't come up with it, it is a term the Party-Media uses to describe people in nations that stand against the official, global communist agenda, who take to the streets in support of their leaders when they are under attack by NATO operations, color revolutions etc.
The term, of course, goes entirely against the image the "left" has of itself. They see themselves as rebels fighting the machine. That's the only thing that keeps the "left" together after it sold out everything it used to believe in.
Once the self-identification as revolutionaries cracks, it's over.
So when you see them protesting, crying and screaming, call them what they are: regime supporters.
And when they ask why you would say such a stupid thing, calmly point out that their entire ideology is supported by the UN, the world bank, the IMF, Hollywood, the mainstream media, the establishment in every Western nation, the pharmaceutical industry, the military industrial complex, the banking industry and essentially all of the institutions.