Actually they are Jobless people who cannot and will not do any good job. It started right from the old days, where Gandhi used to go on strike for everything. Atleast he did for the freedom for India, These guys have picked up the pace with him. So for everything they have to put their nose out.
Doesnt matter what the topic, they have to say something. Dont worry, very shortly communism will be banned accross the span of this planet and these guys will hide under their rock.
Or knowing them very well they all will turn capitalists and curse communism.