The MC manages to become friends with every cat in every Clan somehow. They're all just like, "oh yeah we like Jim but screw all of his friends durr"

* I think it's neat when the MC befriends cats from other Clans and I really love those stories! I just think kind protagonists are nice. Unless prejudice becomes a conflict itself, it is a bit weird to never have other Clans' negative perceptions challenged, because I thought that was the point of cross-Clan relationships. They can make a connection with your MC and slowly realization all their past views were wrong and extend that same friendship to the main Clan. Whether it's accepted or not can be another conflict.