What is the deal regarding Greenbull? Last time I checked, Greenbull did not need Marco to weaken King or Queen (“Hmmmm, I wonder why Zoro got a lower bounty than King, only Luffy cheated his match with Kaidou after all” t. Zorotards), are you referring to Shanks?
Greenbull is not Akainu, but for the sake of the argument: Greenbull was already planning to fight the alliance that took down not one, but two Yonkous, Shanks would be a third Yonkou group, hence him saying “not now” to Shanks, frankly I already found the premise ridiculous before Shanks, and technically speaking, the group should have fought off Greenbull easily without him, but Oda decided to add another yonkou just for good measure, that’s not a disservice to Greenbull in the slightest, but if you can find someone preparing to fight three Yonkou crews, crews, not single Yonkou, mind you, then I will say that yeah, Greenbull does look like a little bitch, but, all things considered, I believe only Imu to be able to achieve this, and I have no doubt he could squander him as well.