Just the typical delusions/bluster from a Luffy opponent right before they lose
You 100% believe one statement of Kaidou's while choosing to 100% NOT believe another statement of Kaidou's.
That is not how this works lol.
Honestly I know I lack stuff to support that idea specificall, but I genuinely cannot Imagine Luffy currently as #1 and I have several reasons to Say that Luffy Is above Kaido.
From chapter 980 to chapter 1040.
Around 60 chapters.
This was the time that Kaidou spent fighting even
before Gear 5 was a thing.
Oda clearly softened up Kaidou for Luffy. Luffy will NEVER need 3 Powerups and 5 (!) Attempts to beat a Single villain again.