A Novel Idea

I had a similar idea to this, but it was much different. Kind of an alien invasion, where a super race of Extra Terrestrial Terrans--who are smarter, stronger, and more beautiful--come to Earth, and take it over. And I would have one of their families who shipwrecked on Earth, but they never told their children, and the child grew up among us, and was super beautiful. And she had to stop them. Kind of like a Superman sort of deal, you know? But, they're just smarter, better looking, and stronger. Like, they can grow muscle fast, they have a mean IQ of 150--that's the middle of their bell curve--and they're super beautiful, and also very coordinated as is what happens in upper echelons of intelligence. But, they hate our earth because our people aren't smart enough to understand the objectivity of mathematics, or understand the objectivity of ethics. It'd be a cleansing of them because they're too stupid to understand morality, science, aesthetics or law. And they sent sages to the Earth, to test them to see if we were advanced enough. And we failed. But, she has to prove to them that humanity has intrinsic value, even if they're too dumb to understand morality, aesthetics and truth. The whole conflict would be around habitable worlds, that it's a lot of resources to make a world habitable for humanity, and if we advance too far, we could destroy an entire planet, and that would be the Terran's reason for doing it. There'd be all the races in the Terran forces, as they advanced beyond racism, but they'd just be more beautiful, and the racism would be against ugly people as there'd be a way to determine intelligence based on facial features and muscle and bone density, which are metrics for beauty. And the protagonist is only 172IQ. About one standard deviation above the norm for her race, so equivalent to a 120 IQ.