Also u probably after Doffy had fallen he most likely become THE major guy in the Underworld. If u add all of this to the Joke of Buggy always falling upwards its obvious how people started to call him a Emperor.
He made a deal with the goverment. He will manage some territories of Kaido and Big Mom that the World Government doesnt want because they are not useful to them. That,or maybe just Shanks is too powerful and ordered to the World Government to make him a Yonko
What do you mean? It may have largely happened in the background outside of the Marineford arc, but OP is a story of parallel ascensions for Luffy AND Buggy…he’s not the first white male clown to fail upwards, if you catch my drift
Probably the several old and new warlords joined different factions as either allies or underlings; therefore, making their respective factions stronger. For example Jinbei joined the straw hat, Moria joined BB, Mihawk probably is Shanks’ ally officially(not underling similar to how Marco is to Luffy) so maybe following this pattern Weevil joined Buggy. As well as having territories plus his underworld connections
But still this isn’t enough to make him Yonko he needs some fear to actually raise his bounty as one of the 4 strongest pirates in the world(his bounty is probably more than Luffy’s) so he either did something crazy with his abilities or awakened CoC infusion like Zoro or something else happened and he was credited for them
I can’t see why Mihawk or Weevil would join him.
What if, the WG actually became smart, and made a deal with Buggy, the WG would help him reach Yonkou status by notoriety and territory, in exchange he would be an ally of them.
We already have spies in the form of Stussy and XDrake, not to mention Mother Carmel being connected to CP 0 itself, the next step would be to propel up a harmless Yonkou, so they can tighten their grip on piracy.
Kaidou, Big Mom and Shanks were also shown doing deals with the WG, so this modus operandi would not be new.
1-Turned other warlords into his commanders.
2-Found an ancient weapon with the treasure map he obtained from Luffy in Impel Down.
3-Became a fucking god by unlocking advanced haki and awakening his fruit.
4-Pulled something very clever like stealing some SSG for himself or something else.