You know something I really like about MHA? The fact that, in the end, Izuku was just some guy.
His parents weren't anyone important. He wasn't All for One's estranged son. He wasn't All Might's secret lovechild. He wasn't Nana's grandson, or a descendant of any other One for All user. He wasn't born with the best Quirk, or born with anything that would inherently give him an advantage. He didn't have a prophecy saying he'd be a great Hero. In fact, the only guy in the series who made prophecies was proven wrong about a lot of things in general and Izuku in particular.
He was a chosen one, yes, but not chosen by the gods or by fate or by any other higher purpose. He was chosen by All Might, who proved himself to be a very mortal, very fallible person, though one with a good heart and a drive for heroism. And he was chosen because he did something that anyone could do, but that very few people would do. An ordinary task that was extraordinarily rare.
Whether you love him or hate him, I can appreciate a protagonist who explicitly isn't God's specialest boy.