Saw this on Reddit and it has me a little shook.
https://www.reddit.com/r/OnePiece/comments/15rqh7d
TLDR;
Kizaru considers himself to be a corporate slave because he does not know what he believes in. He has no dreams and does not care about things but he wants to. So he just goes with the flow and fights strong-willed people so that he can understand what it means to believe in something. And his character arc will end with him finally getting a dream.
And of course, as a result, joining the Straw Hats is the event that shocks the world.
Blackbeard 10th commander = Kuzan, Strawhat 10th commander = Borsalino.
https://www.reddit.com/r/OnePiece/comments/15rqh7d
TLDR;
Kizaru considers himself to be a corporate slave because he does not know what he believes in. He has no dreams and does not care about things but he wants to. So he just goes with the flow and fights strong-willed people so that he can understand what it means to believe in something. And his character arc will end with him finally getting a dream.
And of course, as a result, joining the Straw Hats is the event that shocks the world.
Blackbeard 10th commander = Kuzan, Strawhat 10th commander = Borsalino.