Darwinism and Adaptation

The centrality of the concept of Adaptation in Darwinism obscures its essential indeterminacy--Adaptation can be either 'to' or 'of'.  Now, the priority of the former in the theory can be easily inferred from the following analysis: because humans lack adequate fur, they need to adapt to a climate by constructing shelter, which involves the development of opposing thumbs, which, in turn, facilitates the adaptation of trees for the construction project.  In other words, in this proto-Darwinian scenario, Adaptation-of is subordinate to Adaptation-to.  However, such an analysis does not explain the adaptation of raw materials to the construction of the Internet or of an extra-terrestrial vehicle, or to a sculpture in a climate-controlled shelter.  In other words, the predominating concept of Adaptation in Darwinism reflects the arbitrary subordination of Evolution to Survival in the theory.