How? Kaido is objectively a very badly written character. People can like him for his feats, his appearance, his monstrosity and brutality - that's something which I enjoyed reading in Wano when he was shown to be completely cruel to his enemies - or other reasons but man, it isn't an overstatement to claim Oda doesn't know how to write Kaido at all. He's about "The strongest wins" but then cheap shots his enemies and doesn't grant them another chance (Lolden and the recent one when he sneak attacked Big Mom to get the dragon fruit). Then he wants to die... but does nothing seriously to achieve his goal? He saw all Haki monsters virtually doing nothing to Imu, yet he believes Haki still rules the world? How is that even possible at this point? And his "top 5 ceiling" thing... Come on, Imu arguably solos them all without blinking an eye, yet he wasn't included in his list? How?
I wish Kaido got the same kind of characterization like Doflamingo or even fucking Big Mom, before she turned into an entire joke in Wano, but Oda simply fucked it up big with Kaido. At this point, I just wish Kaido was written like Frieza or Cell - antagonists who are simply evil for the lolz. People nowadays do not like these kind of villains that much but honestly... I don't dislike this at all. A reason why I believed Gargling had high potential, until Oda sacrificed him for Imu's hypetool, lol.