It depends on criticism, and is derived from criticism. In other words, show how it depends on that thing. If they ever find the whole truth, the show will end. Heterosexual only makes sense when opposed to homosexual. Without homosexuals, there would be no heterosexuals.
Truth depends on error.
Without the concept of error, truth does not exist. Thus normal sex is in fact a specialized perversion. This disrupts not only the hierarchy, but the opposition itself. Note how this is different than simply reversing an opposition. Deconstruction doesn't simply reverse the opposition, nor does it destroy it.