It's called the kyklos because it is a cycle of human civilization: we go forward, we go back. Over and over without end. The struggle between the proletariat and bourgeoisie is an inevitable part of that cycle. There is no 'losing' this battle. There is nothing idiotic in pointing out that we're still facing the same struggles because human nature hasn't changed and no one learns from history.

In any case: Marx is irrelevant, these people are on the wrong side of history, as is anyone who sides with them. Have fun screaming at a wall.