Is Lilin really a Tyrant on totland tho? Yh she has a twisted way of bringing up her kids but I think she’s a fair ruler. Only downside to her rule is her hunger pangs & that isn’t really done on purpose and can be controlled provided she gets what she wants.
Moreover why would Katakuri suddenly go against is mom? It doesn’t really make any sense for him to and tbh it’d leave a very bad taste in my mouth if he turns on Lilin simply because he had a heart to heart fight with Luffy.
Lastly, hypothetically speaking, even if the kids wanted to rebel, you think they’d stand behind Katakuri against the monstrosity that is Llilin? Katakuri stands no chance against against her.