Nobody said Gadafi was a humanitarian, he was monstrous as far as I know. The point was that the attack was justified using several unsubstantiated but widely-publicized-as-fact claims.
1. What says it was your hated USA that lied and not the locals? (In Syria, US, France and Israel agrees.) The first thing that dies in a war is the truth -- e.g. the Internet is full of people arguing exactly the same conspiracies as only brutal dictators. Like you.
2. It is really easy to go to a muslim tribe society with honour killings and ask people if they or their relatives were raped a year earlier.