Speaking as someone in Science (at the University level), kids should concentrate on the fundamentals (3R's) and NOT the stuff you're reciting. There's time enough later in life for them to make a rational decision on their own, in maybe a college course, once they've grasped the fundamentals. Not before.
Besides, what about Advanced Algebra and Pre-Calculus? What about basic Newtonian Physics? How about learning to write an intelligible sentence? Reading the Classics of Western Civilization and comprehending the knowledge of those great minds that came before us in Greece, Rome, the European Renaissance and Enlightenment. These contributed to our present success. There are so many other subjects to be learned that will enable kids to be prosperous without wasting their time.
I agree with your assessment that the book skews the conclusions towards the Left. I might add that I've always hated the so-called 'Field' of Ecology, and found it fertile ground for propagating this kind of nonsense.
I started questioning things in kindergarten.