The word is unity. Solidarity sounds nice, but what does it mean? The unity of the disposed, the disinherited, poor, exploited and oppressed formed political parties and labor organizations led by intellectuals often from other classes. Highly educated and strongly identified with Wretched of the Earth, the intellectual lived a dual life. They would be arrested, imprisoned, assassinated and marginalized. The fate of the intellectual often was closely tied to the destiny of the working class movements. Yet, because their education these same intellectuals experienced directly advantages of privilege sometime their lives.
In the 20th century socialist movements dominated the scene. The 19th century anarchist movement was in decline leaving the Second International. Division within the Socialist Movement while intense was contained within the International.