Materialism and Form

It is difficult to conceive how Marx might disagree with Hegel's characterization of Labor as an imposition of Form.  But, the traditional correlate of Form is Matter, and, in at least one prominent system, i. e. Platonism, Form and Idea are identical.  So, a challenge to Marxism is to accommodate Form in Materialism, e. g. to derive Form from Matter.  Now, Dialectical Materialism neither answers nor avoids the challenge, since Dialectic is a Form, i. e. is a pattern, whether of Ideas or of Matter.  What the formidability of that challenge indicates is the inadequacy of any Monism, whether Spiritualism, Idealism, or Materialism, to the Form-Matter duality.  In other words, Marx can no more conceive of Labor as Form-imposing without a guiding Idea, than Hegel can conceive of it without a physical agency to accomplish it, or at least in the absence of a proof of a psychokinetic power of Consciousness.