Why does Luffy in One Piece always say: I want to be one piece's man?

The landlord's question is too profound to understand and answer. Let me analyze it from many aspects.

1, judging from the plot, Luffy is going to be one piece, so this idea will go all the way to Luffy's final destination. This is the soul of this book, just like the soul of Naruto's hermit, which is what Naruto often says: I want to be the one of Naruto.

2. In terms of personality, becoming one piece is Luffy's dream, and it is the spiritual motivation to support Luffy to stand up again after being knocked down every time, so it has become Luffy's self-suggestion and always encourages himself.

Grammatically speaking, "I want to be a One Piece" can be simply said: I want to be a man. One piece is just a decoration. Luffy is still a boy now and will definitely become a man in the future.

4. From the author's point of view, we should grasp the key point of the sentence "I want to be one piece"-man, is the author a man or a person from a certain country (hard to say)? Why doesn't the author write "I want to be one piece" but men? It means that he is a male chauvinist. What is a woman in his country? ......

It's not well written Welcome everyone to clap bricks.