This movie could have been something that really sent a positive message in a time of division. Instead of teaching young people that the world is a better place if men and women work together and respect one another, it decided to do the opposite.
The main storyline of the movie is that in Barbie land, Barbie's are in complete control and Ken's are irrelevant, and that in the real world the opposite is true. Upon seeing this, Robie and Gosling return to Barbie land and Ken flips the system so men are the ones being selfish and Barbie's are irrelevant.
The Barbie's then work together to make it so the Ken's are irrelevant again and everything is as it was at the movies start. There is no moral of the story of positive takeaway.
Work together for everyone's benefit has been replaced by an eye for an eye. Men are jerks in the real world so the Ken's should be punished.
The movie made some important and satirical references to how women and men have different challenges in the modern day. These were however short distractions from the problematic plot.
Do yourself a favour and wait a year for it to come to a streaming service.