With movie context: he's pissed that Barbie has so many freedoms and superior rights. It's a woman's world. Males are lower class and serve the women. And if you stop the movie 2/3 through, Ken/men take over the world in Barbie's absence and take their revenge to live happily ever after. Conservative men tend to think the world has already been taken from them since they're no longer supposed to catcall women walking, slap their secretaries' asses, and generally blame this generally progressive trend for equal rights/freedoms as the reason they're so unsuccessful in life. They don't blame the economy, capitalism, imperialism, unsustainable growth, misrepresented postwar success, or politicized religious takes; they've been brainwashed to identify women as one of the outgroups taking away their resources in a zero sum game.