Original sentence: Although there are still many Marxist revolutionary social movements and political parties around the world, since the collapse of the Soviet Union and its satellite states, relatively few countries have governments which describe themselves as Marxist
Edited sentence: Although there are still many Marxist revolutionary social movements and political parties around the world, the deaths of millions under Marxist governments and the collapse of Marxism in East Germany and the USSR caused the philosophy to become near-universally reviled