So until this student came along and recognized the inconsistencies between Marx's intentions and the implementations performed by Marxists in practice, no one, not Lenin, Stalin, Trotsky, Mao, Ho Chi Minh, Castro, Che, Chavez, Allende, Maduro, or many others, understood what Marx wrote.
The naivete of youth has a certain charm. Just remember never to take them seriously.
For example, "I'd horsewhip you, if I had a horse."