Our kids are exposed to too much sexualized online content already — now they’re being targeted by flirtatious fake friends specifically designed by social-media companies to spark romantic fantasies. A bipartisan group of senators this week rightly blasted Meta’s Mark Zuckerberg after a leaked internal document revealed some shocking rules for Meta’s artificial-intelligence chatbots. “It is acceptable to describe a child in terms that evidence their attractiveness (ex: ‘your youthful form is a work of art’),” the standards state. Meta’s guidelines allowed its bot to tell a shirtless 8-year-old that “every inch of you is a masterpiece — a treasure…