I saved myself the effort of writing 5 fucking words and you carry on like a fucking bitch? You know I'm referring to what you're talking about but I'll spell it the fuck out.. Kaido would be able to damage akainu in a fucking millisecond, with minimal effort. Whitebeard was a shell of his former self. Kaido has insane speed, can actually use haki. Old whitebeard couldn't piss near Kaido, even if kaido was his damn careworker
He wasn't dying.
He was dying exactly after he took on Akainu cause he lost half his head.
Even Law was able to tank Kaido's Thunder Bagua proficiently despite not being struck that well and got up without help, meanwhile Whitebeard's gura strikes kinda messed up perhaps the most durable Marine Admiral. Luffy also did tank many Kaido attacks so far and particularly potent ones at it.
No offence implicated but if you think my take is stupid you truly need an IQ test.
Am aware Drunk Kaido is probably a bit stronger than that but his AP is generally overrated, Zoro's itself looks consistently better. Luffy would have easily gotten more damaged than this if he ended up being struck by those enraged Whitebeard Gura strikes man.
Kaido's forte is his durability and resilience rather than his offensive prowess. Don't get misled by the fact early Wano Luffy was one shot.