That doesn't make much sense though, because that would mean that Faunus were complete retards incapable of making their own kingdoms. In the Creation Myth, it stated that Humans were made from dust, and Grimm then followed. Then, HUMANS made their kingdoms...and where exactly were the faunus in all this?

What if...they were originally Grimm who have regained their soul (think about how all the Grimm are based off animals)...THE MYSTERY IS REAL.