Marxism, Darwinism, Messianism

Like Nietzsche, Marx presents a challenge to prevailing Theology via a derivation of Spirit from Matter, i. e. that shows how the former might not be independent of the latter, or its origin.  But, the value of the argument is limited, since it offers only an alternative to, not a refutation of, the Theological doctrine.  In contrast, Darwinism is more compelling in that regard, since it can cite evidence that tends to falsify the account of the origin of the human species that is the fundamental premise of that doctrine.  It is not to the Cosmogony of the latter, the usual focus of debate, but to its Messianism, that the threat is potentially devastating, because if Darwinism is correct, then the species is not in a 'fallen' condition--indeed, to the contrary, it is in a superior one to its antecedents--in which case, it has no need of a 'savior'.  But, the extent to which Marxism might subscribe to Darwinism in order to draw upon this powerful weapon against exploitation is unclear, since it would seem to require jettisoning some cardinal features, such as Dialectical Materialism.