Lol
Movin goalposts
Kaido never specified any conditions
Also, Kaido actually said No one in the whole world can beat him lmao.
Look at what his internal monologue is. He's in awe of goofy beating his ass.
His words outside and inner dialogue are conflicted. Meaning one of them is not his real sentiment. Internal dialogue is almost always the accurate one.
In the other scenes, like kaido top 5 scene, there's no conflict or contradiction between his words and internal dialogue. So they can be taken at face value.