"Eg I had a class that really critically analyzed native American cultures. Today the class would be considered racist, it would have to a priori be an admiration of those cultures, rather than a critical analysis."

...that makes rather extreme ad-hoc statements about modern academia without citing even a shred of their own or someone else's experience is chock-full of critical thinking skills and a great way to conduct debate?

Definitely the product of an education via Internet Corner Bubble Forum where you can randomly make up controversial statements that get upvoted by like-minded people and expect to not be called out on them.