Honestly my biggest problem with zkk is people wanting zoro to overshadow luffy
The idea of kaido dying or being kill has never really bothered me. If zoro, law, linlin, or kid etc. Kill him i don't really see it as an issue in general
Tho at this point i dont want to see kaido still getting up and fighting for another 10 chapters
Like im more than ok with the fights being over lol