1. Marco and Drake ARE NOT main characters. It's impossible for Oda to give commander fights to these people.
Look at it this way, we have 25 chapters of build up to Neko and Inu vs Jack and it's two panels long. 25 fuckin chapters of build up amount to two panels. That's how little Oda cares about giving side characters actual important enemies to fight. And to make it worse, Neko and Inu don't even lay jack out for the arc. Jack is stated to be returning and guess what, he'll be finished off by an actual main character.
2. Zoro cannot play a supporting character for 50 of a fight. You guys seem to first of all, not care that Zoro still has a dream. Yes. Hes on a vendetta against kaido but that's not going to stop him from actually doing something to further his dream.
Zoro cannot walk out of the Swordsman arc without a dedicated 1v1 fight. You know this. I mean do yu really think Zoro won't have his sword fight. In this arc? After evert my one complains for 400 chapters that Zoro is coasting through the new world ad doesn't actually fight 1v1 against anyone of notable challenge, you're saying Oda hears this and makes an arc about swordsmen and has Zoro play support to occasionally get a sneak attack on kaido and then run around and then get another sneak attack and rpeat for 50+ chapters?
My God you people arent Zoro fans. I'm starting to believe this. How can you not want Zoro after all this time not to actually get a serious fight? Since fuckin Ennies Lobby? It's been 600 chapters since Zoro actually had a challenging 1v1 and now in this arc about swordsmen you want him to play 4th place to luffy law kid for his main fight?
Jesus christ
1. What the fuck are you talking ?
Marco and Drake're part of the war now, how it would be wrong for Marco to deal with King and Drake (with Sanji) against Queen. Marco says it himself that their first role is to beat Kaido, so stop messing around with your shitty calamities especially since Queen seems interested in Sanji and Drake (because he's a traitor) for King and Marco it's written because the two people look alike (They turned down an offer of a yonko, they had the same scene with the Big Mom crew and they have an identical DF)
For Zoro Oda shows us very well that he absolutely wants to face Kaido, generally Zoro shows no interest in the final boss and always fights against the right arm but here he doesn't care, you have to be really blind not to see that, use your eyes once
2. You are Oda, you know how the fight will go ? If Zoro does a good performance against Kaido and manages to hurt him on top of that (big injury) that's more than enough, You tell me that he will not fight against any samurai but we have never seen a single calamity used a fucking sword
Especially since Zoro seems to be involved in what is he's happening on the island (Hiyori, Yasui) it's just completely normal to see him fighting Kaido, so stop saying shit and open your eyes, their fight has been tease for a long time, you came late