But do you really think Oda would give a villain what they desire?
Technically, he's not by Luffy stopping him from taking over Wano and creating a world of chaos.
However Kaido wanting to die is pretty sad and arguably pretty different from your typical villain. It's far more personal and messed up. I think in the end the story will close that concept about his character because thats what Kaido wants. Its why he also just let's people attack him.
And then he goes and says it's "not enough". His speech to the Scabbards after they cut him is a big tell about this. "I could have let you kill me, but you are not Oden"