You did the right thing. The only way in hell I would even consider having sex with a drunk/passed out person is if I had their full and enthusiastic consent received while stone cold sober. Intoxicated consent is not consent, and its a shame how our culture normalizes that shit or shames people into thinking that the only way they can do something with a 'good conscience'. Which is funny, considering they're intentionally putting themselves in a situation where they would then be taken advantage of instead of just talking about it like adults.