User blog comment:Sithlord Andeddu/How will Totto Land end?/@comment-24850639-20170210215144/@comment-3507581-20170211011231

@HanataSanchou.

Luffy defeated THREE Shichibukai: Crocodile in Alabasta, Moriah in Thriller Bark, and Doflamingo in Dressrrosa. Check the Story Impact section in the Dressrossa Arc page if you still don't get it.

Other than that, you hit the point about Kaido and Big Mom: 1) Luffy can't keep running away from foes who think themselves as untouchable (Read: "The bigger they are, the harder they fall") and 2) Both conflicts are and WILL be unavoidable if the SH ever want to reach the finish line of their journey.