Why arent left wingers proud of their roots?

Marxism:
the political, economic, and social principles and policies advocated by Marx; especially: a theory and practice of socialism + including the labor theory of value +, dialectical materialism X, the class struggle +, and dictatorship of the proletariat + until the establishment of a classless society +.

Do you have a different dictionary?

If you think of dialectical materialism as production will improve as the unions gain control of the means of production I guess we could give a plus there too.

Now that I think of it, I suppose red ought to represent the affirmative.