True, no Boro Breath but it doesn't make it better when Dragon Kaido was unable to kill a fodder smile like that. At least Imu managed to kill someone, what's Kaido's kill count again in Onigashima? Did he even kill Mr. Go?
You really acting like PIS doesn't even exist in One Piece. Kaido is a victim of that as well as other characters. It doesn't make them weak tho, so stop the hypocrisy.
Lol. it doesn't matter when the opponent is freaking Kaido... Fodder like Speed are small fries to Kaido, she's supposed to die by one hit, that's how large the difference is between her and Kaido.
Also, is there an excuse why Kaido failed to kill halfdead Kinemon with his ACoC blow hitting his head? If it's because of Kinemon's willpower, why does it not count for Cobra who wanted Sabo to flee away before dying at the end?
Let's not even talk about Imu for a second (reason why you even got jumped in this thread for even entertaining this nonsense buddy) but there are characters which I see are stronger than Kaido:
Xebec.
Blackbeard.
Primebeard.
Roger.
Prime Garp.
Possibly Mihawk. (At worst he's slightly weaker than Ryuma but this would already put him above Oden who nearly killed Kaido)
Possibly Dragon.
Maybe put the strongest Gorosei there as well.
See? Kaido is even weaker than them. What makes you believe Kaido is stronger than the final villain? It's either Blackbeard or Imu but point is, the possibility of Kaido looking like topi roppo in comparison to Imu/Blackbeard is extremely high.
I know you don't like that but better get used to it; One Piece is a shonen like everything else and the more the story moves forward, the stronger enemies we will keep seeing. Again, not to mention the final villain. This is not simply a good discussion, it's delusional to think Kaido - a mid series antagonist - is stronger than the final antagonist. In which shonen manga was this even the case?
Knocking out in what sense? He pierced a hole in Sabo's body and dude was on life support. Stop the copium...
Sabo wasn't simply allowed to be knocked out in that particular moment; he had to flee and report to Dragon what he had seen, hence plot.