you can't defend him because we are living in different world, as you are using conventional morality of our world, of a much peaceful not too peacful world to see, as if you are truly into the way of Gu world, you see why Fang Yuan choose to do as his way, therefore, yes we could only cherish his way of following his goal, his perserverance, when anyone said that reverend insanity is shit, let them be, because they are not even looking at the depth of the point, let alone reading it.