How is Kaido going to climb out?
Kaido can literally fly
Kaido thinks joyboy will defeat him instead of killing him
Yep, he can't even process the idea of being killed, he doesn't believe someone is able to.
From the end of 1049, we saw the end of the story, Kaido's memory, the battle that lasted for 23 years
If Kaido stands up, why go to the flower capital instead of looking for Luffy?
Who knows what he is gonna do, if he goes for Luffy someone will have to save him since it looks like he is out.
How did Zoro wake up?, Even when he wakes up, he is a scarred and dying man
Oda decided to pull out hakai to remove Zoro from the yonko fight and then to use the drug to start this other plot of the grim reaper and we have no idea what is the purpose of this. It's up to Oda. Luffy woke up 4 times with no much of explanations.
ZKK cult claims that Zoro will kill awaken Kaido. How can Zoro do that?
ZKK cult believes that Zoro can do what Luffy can't do
Zoro is a swordsman with adcCoc he has all the tools to do it and already proved to have enough power to do so. Hiryu Kaen scene happened btw.
And yea, just like any other straw hat Zoro has qualities that Luffy doesn't possess, he is not a completely useless crewmember. Unbellievable, i know.
The most important point is that Luffy is the protagonist, while Zoro is just a supporting role
For more than 20 years, Zoro has never robbed Luffy of its credit and opponent
However, I think we can agree that Zoro was setupped as a protagonist on par with Luffy when this arc started, or at least that Oda highlited Zoro more than any other of the crew outside Luffy. Yet, as the climax finally occurred, Oda has put him aside and he has been absolutely irrelevant plotwise.
You said that in 20 years of one piece he was never as important, which is true, zoro has never been as important as he has been in this arc, but you must also take in consideration that to reach this moment he has had only brief moments in most of the post time skip arcs despite being one of the "main trio", such as dressrosa, unlike nami, who despite not being present in dressrosa had tons of moments in wci, where zoro was completely removed.
If ZKK doesn't happen, one piece will lose an opportunity to be better, but fear not, it's definety happening.