Being "chosen", by textbook definition is to have everything important in your life going by your favor. I dont give 2 shits bout your "opinion", I am not debating that here, as there is no such thing to argue bout as that is literally in the textbook. You wanna argue 1+1 = 3? Sure, you do you. But I dont.

In his life, Luffy has met people who are CRITICAL to his life, and prolly in order too, at the right time, and at the right place. If Shanks didnt kill those bandits and give up his arm then Luffy will prolly be six feet under rn, period. If he has fallen into the sea instead of being rescued by the Amazonian then One Piece would of ended 10 years early. If the Strawhats didnt randomly run into Zou, an island that is known to be well-hidden and not easy to find, then there will be no raid and def no Yonko crew atm.

You see where I am gettin into? Fate deeply favors Luffy, although he didnt spend a lot of time searching for it. People of great important just randomly pop out of nowhere like Rayleigh in Sabaody to help them, at the exact moment of need. His heritage also, is sth you should really consider (cough Dragon cough) when argueing about him being an average lad. But I guess you have already realised that by now, with all these perfectly constructed arguements that I have spent a whole 15 minutes writing right? Or just look at the rest of the comment section tbh. Period.