me: I think the point is that the "redneck" West wasn't just Ennis' social environment. It was also inside his mind. I don't think he reconciled himself with being gay (or bisexual?). Not even to the extent that Jack did.
in addition, I think that for Ennis, and to a smaller extent for Jack, his "gayness" was specific to one other man rather than being generalized (though maybe he should have generalized) and also specific to one place (the mountain). JD