Well, you didn't read it, so how do you know? Haha
Anyway, again, maybe this happened due health issues but last chapter breaks op logic
Because I don't really want to read a story with reactionnary positions right now, thanks.
Bro how do you come to these conclusions
Simple: The speech of Vegapunk is literally what starts officially the race for the throne symbolically. This is also a speech that completely change what the character and the readers know about the world and create the final stakes for the final conflict.
In other word, this speech is a fundamental piece of the narration of the entire story of One Piece.
So, when Oda created the main story of One Piece, he most likely outlined it like all of his arcs. And it would be VERY difficult to outline the story without the big piece that is the flood as it is fundamental to understand why the end will end the way it will end. So, chances are that Oda created the concept of the flood before even writing his story. That would be coherent with his writing habbits.
And since Oda introduced the concept of devil fruit technology and objects eating devil fruit in Alabasta, it's highly possible that Oda already had Vegapunk in mind at this point and it's very possible that he knew that the guy would make a big speech that would change the world.
Now, did he outlined the entire arc ? Probably, no, he must only have had a vague ideas of some of the concept he would use their (clones, astroboy technology, cloud technology, mother flame) but that's enough to say that Oda had already a strong desire to write this arc in the first place... already at the very beginning of the story.
It's nothing more than a basic joke - a bit of mockery. You've shown time and again you can't understand author's intent though, so I guess it isn't surprising you'd think this. Maybe it's just your bias against people on this forum. Oh wait, you are immune to being biased when it comes to virtue and understanding (declining) stories.
And of course you have to pretend - or delude yourself into thinking - that every contradiction and mistake Oda makes doesn't exist or isn't relevant, how else will your precious manga get into university courses? There's no way you can be wrong about anything, right?
Keep thinking what you want mate, it doesn't change reality
Yes, Oda make mistakes. But you guys are pointing the wrong ones.