The Swedish (ex-)communists became feminists and anti-racists (they argue for something called "structural racism" that native Swedes are guilty of to immigrants -- never with references to non-extremist sources).

In short, just the normal marxism, but another group than "workers" to create conflicts around.

This wouldn't be more than a detail, but the left wing extremists has a big, big representation in the journalist profession since the early 70s. You find lots of left wing academics saying weird stuff in the media, without being identified as e.g. extremist ex-mental patients (Hübinette) or anarchists which wrote admiringly about Ghadaffi (Gardell), etc.