Idk, possibly will leave on graveyard, or it will broke. But he will use his fathers sword Kitetsu, something that he should use right now.
Well, it's not going far away from Sanji, plus indeed Enma will kill Kaido using Zoro's hands, but it will still have logic, case if it was Zoro's power then who is Shiluy YC1 of Teach? So this actually could work now. Also it will work even with Yamato, case this is not Zoro but Oden who will kill Kaido using Zoro's hands. Sympolic meaning of the fact that Will of Oden never died. Maybe his haki helped scabbards too.
Well, it's not going far away from Sanji, plus indeed Enma will kill Kaido using Zoro's hands, but it will still have logic, case if it was Zoro's power then who is Shiluy YC1 of Teach? So this actually could work now. Also it will work even with Yamato, case this is not Zoro but Oden who will kill Kaido using Zoro's hands. Sympolic meaning of the fact that Will of Oden never died. Maybe his haki helped scabbards too.
I get the symbolic, but either zoro keeps oden's haki, which many people won't like, or he surpasses that lvl
Shilliew was stated to be Magellan's equal, and Magellan was near admiral lvl given how he easily one shotted black beard's whole crew
Sanji's flammes come from his will and emotions, the only thing from an outside source is his durability and endurance, but it was earned and it doesn't undermine his will, heck it actually highlighted his will and mental strength last chapter, when he was willing to give up his emotions and humanity if that's what luffy wanted
Zoro's strength coming from oden is a bit weird tbh, and it's way out of character