If “the closet” is so self-evident as the movie’s theme, it is certainly odd that it is almost never mentioned as the movie’s theme.
Instead “Brokeback” is falsely claimed to be a conventional love story — hetero in the guise of homo. Nope.
Both narratively and visually, “Brokeback Mountain” is a tragedy about the specifically gay phenomenon of the “closet” — about the disastrous emotional and moral consequences of erotic self-repression and of the social intolerance that first causes and then exacerbates it. If Jack and Ennis are tainted, it’s not because they’re gay, but because they pretend not to be; it’s the lie that poisons everyone they touch.