Anyone trashing AOC can’t be a leftist. As an outsider to US politics, I can see how someone on the left could criticise Democrats for not doing enough and being too kind to billionaires. But AOC? No way.

That's the plan to get democrats to stop voting. They can't convince people to vote republican but they can get easily influenced leftist to be angry at democrats. The end result is for is to vote 3rd party or stay home.