Theory Luffy has the Monkey King no mi

Luffy hasn’t eaten the gomu gomu no mi he had eaten the eraser no mi. He can erase everything in his awakened form. Objects , people, memories, slavery or a 100 years. That power was used after Joyboy lost to erase the 100 years. That’s why Joyboy had the kozuki make something they could erase and that is the poneglyphs.
Stuff like this just doesn't sound like something a decent writer would add to their work without cringing. It's too out of place.