Basically, it's about as subtle as a brick to a toddler's face when it comes to 'The Message' of the film about toxic families to the point where it feels less of a story with a theme than a theme that got some story aspects stuck to it with glitter glue. All of the 'magical' characters have some blindingly obvious toxic familial trait (there's the sister who carries all the heavy emotional baggage donkeys without complaining, the sister who lies to herself about her feelings until she breaks down makes it rain, the one who is a different person to everyone... literally a different person to everyone, the sister who seems outwardly perfect makes flowers blossom everywhere she goes and, of course, the neurodivergent one is shunned and ignored literally lives in the strawberry floating walls), and, if anyone was unsure of what they represented, don't worry, most of them get a whole song to literally spell out 'hey this is what's wrong with me'.
So the 'perfect' family is disrupted by the normal non-magical girl who exposes the cracks in the facade literally makes the magical house fall apart, until the matriarch finally admits she was wrong and they rebuild the house (by hand of course and with the help of the village because it takes a village and all that) and the magic comes back.
I mean, I get its Disney and a kids film but usually the themes are better hidden and more subtle than this. Even Inside Out and Soul which were similarly 'Very Heavy' on theme still managed to hide it behind a reasonably engaging independent story whereas this just seems to be leading 'message first' and hoping the story finds its path along the way.