Holy Hip-Hop?

If it is not real proof, naturally, we will not accept it as "proof". Just saying that we don't accept it doesn't make it real proof. Your "proofs" omit many deciding factors, as to what makes music (and its "effects") acceptable or inacceptable. Like "a beat makes you want to move a certain way". The assumption then becomes that marching or sitting stiffly and 'contemplating' is always spiritual, and dancing/bopping is always "fleshy". If this was true, you would have proof, but it is terribly overgeneralized, so is not accpted as proof.
(Note, it is not the categories of "spiritual" and "fleshy" that are being denied; at least by me. Your "proof" seems to be simply the fact that such categories exist, but what you have not proven is that one style always falls into one, and another falls into the other).

Most aren't saying that a line shouldn't be drawn. But we have to be careful when we think we see a need for drawing a line for everyone else. You rule out many "temerate" styles as "fleshy", thus attempting to draw the line for everyone.