I suspect that what Billy Dee Williams meant when he said he identifies as “non-binary” was that he doesn’t give a fuck who fucks who. He was basically saying “I’m easy.” But even if he meant that he’s indulged his womanly side in this or that way, I don’t think it matters all that much given his age. He’s past his sell-by date. If Lando Calrissian had offhandedly mentioned in 1980 or ‘83 that he’s had a little non-binary action, then we’d be talking headlines. But who cares when an 82 year-old guy says this?