It can't be a 'horrible misreading of Kantian TI' because it isn't a reading of Kantian TI, in itself as distinguished from for itself and for others is a standard concept in philosophy since Kant and part of common sense language.

My point is just that value isn't some simple natural thing that you could consider as a positive fact, like you are trying to do. Value doesn't 'take its 'shape' (whatever that would mean) from necessities of human life', and has no immediate special relation to necessities.