Marxism and the liberation of animals are two things which, at first glance, do not seem to have much in common. Neither did the former make waves for being particularly animal-loving, nor are animal lovers known for taking up the cause of liberating the working class and the construction of a socialist society.
Quite the opposite: Classical Marxism has little appeal to the predominantly autonomist-anarchist animal rights activists; it is regarded as an overly simplified theory and as an authoritarian ideology which has become obsolete with the end of actually existing socialism. Although the critique of capitalism and the labour movement’s vocabulary (‘comrade,’ ‘class’) are regaining popularity amongst the radical left, one nevertheless does not quite know what to make of traditional Marxists. Marxists are considered to be people who notoriously hate animals and only talk economy, and who are often indistinguishable from petty bourgeois philistines who do not want to forego their grilled sausages.http://links.org.au/marxism-animal-liberation