One answer can also be that the World Government considers all D's as the enemy of world government or just the fact that luffy is the son of Dragon is enough reason to not to make luffy their ally by making him a Warlord. That is not valid argument.Feb 13, 2018
The Four Emperors, which make up one of the Three Great Powers, are a group of four pirates considered to be the most notorious and powerful captains in the world. The group currently consists of Red-Haired Shanks, Blackbeard, Straw Hat Luffy, and Buggy the Star Clown.
However, the seven most recognizable Warlords are as follows: Dracula "Hawk-Eye" Mihawk, "The Tyrant" Bartholomew Kuma, Boa Hancock the Pirate Empress, Sir Crocodile, Gecko Moria, "First Son of the Sea" Jimbei and "Heavenly Yaksha" Donquiotxte Doflamingo.Oct 12, 2021
Out of all the 7 Warlords that fans have been introduced to so far, Buggy remains the weakest. He isn't particularly good at anything, and his Devil Fruit isn't all that impressive either. Buggy's biggest strength so far is being in the right place at the right time, and accidentally rising to power.Jan 13, 2022
It was there Oda opened up about his decision to blind Zoro in one eye back in the day, and it seems the mysterious injury was planned from the very beginning of One Piece!Jan 31, 2021
Luffy Is Already Considered A Yonko. The Captain of the Strawhat Pirates, Monkey D. Luffy is inching closer to the top every day, and it helps that he possesses the surprisingly powerful Gum-Gum Fruit. Having already been declared as the Fifth Yonko of the Sea, Luffy is closer to the spot than anyone else in One Piece.Nov 9, 2019
Seven Warlords of the Sea.
7/10 GECKO MORIA (CAN)
This saw the debut of nightmare Luffy , a bulkier and more powerful version of Luffy. The Warlord of the see replied in kind by using his Shadow Asgard technique which made him huge. Luffy the used this to his advantage as Moriah had become a bigger target and the Warlord was finally defeated.Oct 13, 2019
After the events of Totto Land, the World Economic News considered Monkey D. Luffy to be the "Fifth Emperor of the sea" among the Yonko. After Luffy, Kid and Law defeated both Kaido and Big Mom, Luffy and Buggy were officially declared as the new emperors alongside Blackbeard and Shanks in the news.