Marx grasped this essence of capitalist democracy splendidly when, in analyzing the experience of the Commune, he said that the oppressed are allowed once every few years to decide which particular representatives of the oppressing class shall represent and repress them in parliament!
“the greatest argument against democracy is a conversation with the average voter”
https://www.marxists.org/archive/lenin/works/1917/staterev/ch05.htm
Also a great argument for education reform