Kaido can be enjoyed as who he is, a arc villain, doesnt need to be deep or anything, nothing wrong with liking him
However
People need to stop the cope to asses importance to the character regardless based on like/not liking them
Oda cant be more transparent who he gives a fuck about and who not regardless if its good for the story or not, one of the clearest authors to read
Kaido was never characterized like a character Oda gave a fuck about, like many other characters that exist in the story that have no thought put in backstory/deeper motivations