Kaido is Luffy's opponent. Zoro doesnt trust Luffy to beat him. Yet Luffy trusted Zoro against Mihawk....
These are all facts. Wimper more.
No, thats not facts. A fact would be:
Zoro fought Mihawk alone.
Luffy is fighting Kaido together with 4 others, including Zoro.
These are the facts.
Your interpretation and headcanon here is:
(1) "Luffys opponent" , (2) "Zoro doesnt trust Luffy to beat him", (3) "Luffy trustet Zoro against Mihawk".
1.: Kaido is the opponent of the 5SNs. Not Luffys alone. It was never stated he would fight Kaido alone. Kid, Law, Zoro and Killer arent there for nothing.
2.: Zoro never said that or thought that. But he wanted to go against Kaido too. Or does helping always considers a lack of trust? Does Big Mum honestly think at the beginning of the fight Kaido would lose there without here? Doubt.
3.: Nobody trustet Zoro there, not even zoro himself. All knew he couldnt take the enemy at that point. But it was a gesture of respect. It wasnt a fight with the intention of winning to beginn with.