There is a chance you will meet a hater who will spout "Yamato wants to fight Kaido, she doesn't trust Luffy 1vs1 him like Sanji and Zoro. Not a SH material".
First of all, Yamato knows how powerful her dad is.
Second, it is more about getting annoyed after all the things Kaido did to her.
Third, even if you somehow bought the Yamato doesn't trust Luffy argument, this kind of "betrayal" is a common occurrence among the female SH. The haters' mocking ironically made Yamato as nakama chance stronger.
First of all, Yamato knows how powerful her dad is.
Second, it is more about getting annoyed after all the things Kaido did to her.
Third, even if you somehow bought the Yamato doesn't trust Luffy argument, this kind of "betrayal" is a common occurrence among the female SH. The haters' mocking ironically made Yamato as nakama chance stronger.