He chose to go there, even Sakazuki said not to go because it's fucking stupid. But he him self claimed he didn't care that Luffy had an alliance of very strong people, and kept going, but somehow stops because Shanks ( who has no feats of defeating two emperors unlike Luffy and friends ) is sailing away and using haki? Fucktard AssmiraL. He'd make a great salad for Sanji though.