I think you are oversimplifying the events. I'm not suggesting there was nothing wrong with EAM. However, the article is about the British involvement that lead to the December '44 events. They freed and armed the Greeks who collaborated with the Nazi regime and they disarmed (or tried to disarm) only ELAS members. Of course Greek citizens would protest against that. And it was policemen armed by the British who opened fire against a peaceful crowd. I really can't see how you can justify this.