Sounds like this just isn't the game for you.
I personally loved them as characters. Seeing Goofy jump up and down after a coliseum win had me laughing every time.
But that's the point of the series. You had to buy into the Final Fantasy meets Disney thing, but a lot of people couldn't take it seriously. I don't know why, because Final Fantasy is cornier than Disney, imho, and I love both franchises.