@JGoldman10,
Is your comic book idea offensive? Not quite. Is the idea of a world of fighting cats and dog populations been done to death? Probably assume this to be the gospel truth.
I hope your characters hold a nano's ounce of originality.
The Bucktown variation on Brooklyn does sounds like an interesting setting if you actually use actual street settings and the actual flavor of the actual borough rather then just make a vague name reference to Brooklyn. What I'm trying to say is make Bucktown (Brooklyn) an actual character and not just a throw away reference.
Just curious, if this is a family/kids comic book, what is the point of it? Will it have an multicultural/educational message in it? How will you make it a kids comic book? Will you be the comic artist? Or is someone working with you?