How long until Oda retcons
Luffy Nika's parentage and claims that Luffy was found by Dragon in a chest labeled "Joyboy" on an ancient sunken ship called the SS Nika near Nika Nika Island and dumped on Garp's lap like Ace?
Maybe Garp never even had kids and he's just been forced to take care of every dumb kid his enemies ever had.