Most American elementary schools and high schools, and nearly all colleges and universities, teach everything that is significant from a liberal/Left perspective.
Two of the many areas of conflict between Judeo-Christian values and leftism concern the separation between the holy and the profane and the separation between humans and animals.
With the demise of the biblical religions that have provided the American people with their core values since their country's inception, we are reverting to the pagan worldview. Trees and animals are venerated, while man is simply one more animal in the ecosystem - and largely a hindrance, not an asset.
The biggest obstacle to people becoming better is that you have to really want to be a good person in order to be a better person, and most people would rather be other things.
J. B. Pritzker