There was a video that made the rounds a few days ago, and I can’t get it out of my mind. In some ways, it’s a garden-variety video of a crazy lady. What makes it memorable is that it’s being framed as the quintessential “leftist Karen.” That raises an interesting question: Does leftism make women crazy, or are crazy women drawn to leftism? The question sounds simple, but it actually has serious implications for American society. The video shows a woman chasing after a man because he violated her standards by having a purebred dog, from which she inferred that...