So let's get this straight.
Kizaru is just casually whooping Yonkou ass and multitasking, while fully acknowledging Luffy was the one who took down Kaidou, meaning even with that he's this confident in his ability to get what he wants.
Zero fucks given, dude's a walking weapon of mass destruction, can get anywhere he wants in no time, we can finally start to understand why Oda drew Kizaru telling Akainu he will head out to stop 2 Yonkou, and actually visualize how he could potentially do it. Light fucking work.