Are we reading the same manga here? All Kaido, Big Mom and WB didn't suffered any defeat cuz of Rocks, they view it as a betrayal.
We literally seen them especially WB standing up fine. If u really count that kick and grabbing from Xebec as him defeating them, so did Kaido defeat Big Mom by slapping his hassaikai to her?
And about Roger, Again u using headcanon here not a facts. Except of them we literally had characters that are yet confirmed to get defeated guys like Sengoku, any Admirals in general, Imu most likely Gorosei too, we also got guys like Enel, Katakuri, King and Lucci who are "undefeated" Until Luffy and Zoro came in and fight them, like i can give ya few examples here, but i nitpick guys like Roger and WB cuz most character hype them as one of the strongest. There is few characters that are yet to get defeated, so why is your issue is only on Mihawk?
Also the likes farm is always your guys issue huh? I can literally nitpick any my comments that supports Mihawk or even Zoro but thats not getting any likes, so why worry about that? We are having a discussions or debate here, Like what are we doing? If likes are hurting ur feelings maybe its on u cuz u are being biased here and it shown.