Fallacy of composition and the Left

[Mr. Piccolo]

How does the Left utilize the fallacy of composition (inferring that something is true of the whole from the fact that it is true of some part of the whole) in its critique of right-wing arguments? I have seen Left-Keynesians use the fallacy of composition to argue for the absurdity of austerity.

Can the fallacy of composition be used to argue against ideas such as the assumption that more education/skill-building is the answer to the woes of modern capitalism?

[tuwix]

Yes, it can. If one uses an example of anybody who is successful due to getting new skills, you can show a story of another one who is highly educated and unemployed.