A bad political haircut.
From an aesthetic standpoint, Communism was without a doubt the least appealing political system, like, ever. Other than the Russian Constructivists, whose stylistic forays never quite meshed with the industrial and social imperatives of the moment and fell into disfavor, the style of Communism -- Socialist Realism -- was always a bad look. Cloaking the aspirations and esprit of whole societies the way a big, badly made, ill-fitting suit hides a good physique, social realism gave Communist countries a shambolic image redolent of old potatoes, body odor and stale cheese. The Soviet bloc style was the aesthetic projection of a sodden, Orwellian reality: what future you will have will be without joy.
A friend has just returned from Hungary, where all the Soviet-era statuary that littered Budapest were gathered up and stuck in Szoborpark ("Memento Park"), a desolate spot on the far edge of the city. There they moulder and tarnish and collect bird droppings, unseen by all but the most crusty, die-hard, party loyalists.....beribboned old functionaries looking up at Lenin and gumming silently in a thin, late afternoon snow.