I've seen a lot of people talking about how Barbie talks about how the patriarchy affects women and how well it does that, so I wanna talk about how Barbie talks about how the patriarchy affects men and how well it does that. Because it does that really well tbh.
At the beginning of the movie, it's made very clear that the Kens are constantly competing with each other, and trying to prove their worth, their Ken-ness, to both the Barbies, and more importantly, to the other Kens. In fact, multiple times through the movie it's shown that Ken seems to find the opinions of other Kens as a motivator for him to do things. He tries to show off to Barbie only after he sees the other Kens saying hi to her. He only starts dancing with Barbie when he sees the other Kens dancing with her. He only goes with her to the Real World after another Ken accuses him of cowardice and he decides to prove him wrong. Barbie says "Ken's not cool!" and Ken responds "He is to me."
This shows so damn well what the patriarchy is like for men. Because for the Kens it's not necessarily about Barbie, it's about what other Kens think of you. Being a man you are constantly, incessantly trying so damn hard to prove to the other men around you that you are a man, the manliest man to ever man, the best Ken to ever Ken. Literally doing backflips trying to prove yourself. And this is before patriarchy is even officially introduced to the story, there's no undertone of power yet, this is just what it's like to be a man around other men. It's toxic masculinity.
And when the patriarchy is introduced, that's increased tenfold. At first it looks like they've banded together to take power, but really they're still competing with each other, they're just doing it differently. Rather than competing to see who can get Barbie to fall in love with them, they're competing to see who can be the manliest, have the manliest stuff, wear the manliest clothes, have the manliest house and decorations.
And then they literally go to war. War is considered one of the few places where it's socially accepted for men to be more emotional, form deep and personal bonds with other men, and that's exactly what happens in the movie. They go to war, and there's an entire song where they bond and learn not to fight with each other anymore.
And that I think is the message from the Kens. For men, the way the patriarchy affects them is it forces constant competition and animosity, even around people that are supposed to be your friends. It makes it impossible to express your feelings unless they're with a romantic partner, and all of this turns you into a pent up ball of emotions with nowhere to go.
Which means that the message is: In order to fix the way the patriarchy oppresses men, men need to learn how to form close bonds with people, especially other men. Because like Barbie said to Ken, he needs to discover who he is without her. Men have learned to lean on women as a crutch, using them to figure out how to Be A Person and express emotions in a healthy way, but this can very quickly turn into a woman feeling like she needs too be his mother and teach him how to do these things. And Ken was 100% doing this, or at least he was trying to throughout the movie. Ken was so desperate for Barbie to be in love with him, not necessarily because he loved her, but because he needed a person he could just exist as himself around. Because he couldn't do that with the other Kens, the only person he could be himself around was Barbie.
And what's so great about the end of the movie is that the Kens did eventually figure out how to form close bonds with each other! They went to war, argued and fought, but by the end of the song they were holding hands, kissing each other on the cheek, telling each other they were enough. Even when Ken is up in the dreamhouse, crying and saying that he looks stupid, all the other Kens start shouting back up to him, saying that he looks cool. And Ken responds by giving one of his new friends his coat, which was clearly very important to him.
What the Kens did, that's what men in the real world need to do. They need to form close bonds with other men and stop competing with each other. Hopefully not by going to war the way the Kens did, Barbie isn't a blueprint for solving the patriarchy lol.
I'd be happy to do it through a song though.