Bad logic, also I doubt Hawkins is Killers final fight since it’s obvious Hawkins will switch sides.
Because Zoro isn’t beating Kidd. If the Kidd Pirates ever matchup against the Strawhat pirates in the future, Zoro’s fight is with Killer.
Kidd needs a better crew to give the rest of Luffy’s crew a good fight. Kidd himself, individually is giving Luffy a good fight. And Killer himself individually, will put up a decent fight against Zoro. You don’t want to hear it, but that’s how Oda would write it.