Koalas are strict vegans. They eat only eucalyptus leaves. Which is why they're endangered when their habitat is burned to the ground. Sadly, Australia didn't even try to rehome the cuties to zoos worldwide. The slaughter of an endangered species proves they don't actually care about ecology.
The indigenous American tribes suffered a total loss of their land, their lifestyle, their government and their culture because of unlimited European migration.
>Did the Founding Fathers care?
Thomas Jefferson seemed to, based on original documents from the Voyage of Discovery (Lewis & Clark expedition).