Your points are irrelevant, you only made up a bunch of stuff to pit Jinbei to an opponent he has no relation, build up whatsoever unlike the minks where they would take their revenege. No need to sugarcoat, it's that simple.
? Literally have not suggested Jinbe vs Jack in months lmao, let alone barely after Chapter 998. I've entertained the idea as a possibility. I've never tried to make it headcanon
It's not "simple". Inu is not fully recovered, has no sulong, isnt with Neko, has one leg, and is fighting a billion bounty pirate with high recovery and a hidden hybrid. Every beast pirate executives has been fought by or is being fought by a strawhat
Odds are highly stacked against Inuarashi right now. He and Neko already beat Jack and "had" their revenge on him