It’s not. Buggy being endgame has always been a possibility since his past with Roger was revealed to us. And even more so now that he’s risen to the role of emperor same time as Luffy.
Blackbeard would be a great villain for a more serious story but OP isn’t a serious story.
Bruh how come you can put Buggy as endgame over BB lmao
Buggy lost to luffy in east blue saga
Croc followed....
Do you seriously think oda will make them who already lost endgame over BB ?
Heck, even Lucci only clashed with G5 for few mins and was done...
If anything, buggy will ally with SHs to beat BB if FV or IMU at the end and will get some glory like saturn...
He isn't antagonist. He never was ...