I think in summary Barbie is a film about self-discovery and understanding your purpose.
This is a universally relatable experience and understanding what it is that makes you special and what do you need to be special (spoiler - nothing). It's an ode to the self-acceptance and self- love movements.
Like barbie is woke, but it also acknowledged reality and a conservative society.
It's mentally stimulating with the different themes and concepts it addresses.