I'm a Rupp fan, too. But I'm also a fan of Camille Paglia, and I can't help but wonder what the author of SEXUAL PERSONAE would have to say about the Pre/Rupp dyad.
To be blunt--and I speak here as a straight male--Pre was sexy. He had sex appeal. It was a particular kind of early/mid 70s thing that those of us who were young men in those years recognize. He was a countercultural hero who carried his masculinity and sexuality easily, but palpably. Guys sensed it, and respected him for it; women KNEW those things were there. He had what David Deida calls a masculine sense of purpose, and he had it in spades. (I'm remembering the film PRE: "Pre had it. He had more of it than anybody else.")
I have no intention of pronouncing on Rupp's sexuality per se, but it's not unreasonable to note that the sexual PERSONA that Rupp projects could not be further from the sexual persona that Pre projected. Pre's persona, shaped by his masculine sense of purpose, was significantly shaped by the degree to which, like a wild bronco, he resisted the strong father that was Coach Bowerman. Again, the films play this up, because it was an essential part of his character. Pre as bucking bronco: a strong, forceful young male who could barely be tamed. A cowboy of sorts. AND a free thinker who spoke his mind.
Rupp? His public character, the masculine persona he embodies, is almost entirely shaped by his willingness to wholly submit his masculinity and sense of purpose to Alberto. There's no bucking bronco in Rupp. Period. He submits; he's quiet and well behaved. He's the good son. Pre was the prodigal son.
This is why it's fascinating to see Nike, and Rupp, and Rupp's publicist(s), try to suture Rupp into Pre's universe. It just doesn't work. It's a game try. But the mythological undercurrents and the sexual personae that drive them just don't align.