He did not say that extramarital sex sins aren't that serious. He said they are not the most important. Some of you are willing to outright lie, and others to lie by deliberately twisting the man's words around to feel like you're holier than he is. But he was right: pride is a worse sin than lust, and while more people go to hell for sins of the flesh than for any other kind, glorying in spreading lies doesn't put you above him in any way. I don't care whether he's the legit pope or not. Even if he were the antichrist, telling lies would be totally unproductive. You need to look to your own behavior.