Pop-left 

One who adheres to or promotes various far-left causes simply because they are currently popular views, not because the individual believes or even understands them.

Ignore her, she's just typical pop-left.

Pop-left by Kettlebell 78 February 27, 2018

pop-left 

The left wing answer to the alt-right: dumb, uninformed angry people on the internet getting themselves worked up about trivial feel-good causes and superficial social justice issues while ignoring actual left-wing values like worker's rights, environmental protection, and actual social justice. Found on places like Tumblr, Huffington Post, and Upworthy.

The pop-left is protesting about student housing officials at Harvard being called "House Masters", from the latin "Magister" or "teacher". In other news, a Walmart employees' union has been shut down, a Mississippi judge was caught accepting bribes for sending innocent people to private prisons, and a carbon-limiting treaty was rejected, but no one cares.

pop-left by MakeAmericaUnionAgain December 29, 2016

Pop-leftist 

A person who promotes far-left ideas not because they actually believe in them or even understand them, but simply because they are trendy popular at the moment, a huge part of the identity politics movement.

Ignore that troll, she is just another pop-leftist.

Pop-leftist by Kettlebell 78 September 23, 2019