In her debut book, Gen Z author Freya India tells the story of how girls her age were transformed by the modern world into “ Girls® ” — products for consumption shaped by social media, beauty filters , and Big Tech. “Young women in particular are starting to see themselves as something more and more like products rather than people,” India, 26, claimed to The Post. “They’ve grown up seeing themselves as basically nothing but an object in a marketplace, and the goal of their life is to optimize themselves for the market, to package up their experiences, and then to be rated and reviewed by people online.” Freya India, who’s Substack-turned-book “Girls®” discusses generational issues.…