Culture is a shared fiction of unity and greatness that enables great civilizations to overcome otherwise inevitable tribal warfare. So Native Americans and Pilgrims sat down together for a Thanksgiving feast with Turkey and mashed potatoes. Should we teach this to children despite there being more to the story? Well it depends, do we want descendants of Pilgrims and Native Americans to sit down for a Thanksgiving feast today, or do we prefer various 2020-style riots to go on? That's the original political correctness, prioritizing getting along over being right. It's not wrong to tell kids that being a boy or a girl doesn't matter, just follow your dreams. Some day they will discover that it sometimes does matter, and that being born 200 years earlier would have sucked. But by then they will develop good habits like striving for individual equal treatment over tribalism. Where left gets it wrong is treating children like adults when it comes to gore and sexuality and adults like children when it comes to free speech.