In a normal world, a sentence like “American Eagle’s new ad campaign, ‘Sydney Sweeney has great jeans,’ seems like it might be a dog whistle for eugenicists” would simply not have to exist. With all of my heart, I wish for that world. I’m confident that we all have better things to do than listen to a TV star with end-stage vocal fry say “Genes are passed down from parents to offspring, often determining traits like hair color, personality and even eye color” while the camera ogles her body, which is draped in denim that’s somehow both slouchy and formfitting....