Luffy fans can only blame themselves, how you follow this series for 1000 chapters and think Oda is going to completely change his formula?
I warned that Luffy would start struggling as soon as the arc after Wano back when many thought Luffy would dogwalk everything til he faces Blackbeard because Oda himself said writing an overpowered MC is a bad idea (when he took Akainu as example )
Yonko title is irrelevant. Oda doesn't give a fuck, he gave it to a fucking clown lol