So let me get this straight. King, who is Kaido's right hand man, that some people genuinely argue is stronger than Kaido (Lel) gets defeated by Zoro in a brutal fashion....
And to keep ZKK alive, Zoro still needs to prove to Kaido that he's a monster Samurai on par with Oden.... By killing him?
So defeating King, Kaido's right hand man, and second strongest member of Kaido's crew, wouldn't be enough to warrant Kaido recognizing Zoro as a monster Samurai?
Man the flimsiness of these arguments..... Is King this ultimately strong badass that proves how strong Zoro is, or is he some low level scrub that wouldn't even make Kaido bat on eye over the person who defeats him?