Many of them are! I don't deny it. To their folly. But some might listen, and some might learn. One by one. We cannot hope to change the hearts and minds of men overnight.
It would be too easy a task if that were the case. When they look upon us they look upon the light and life of the Eldar. And their having looked upon us at all heightens them.
It is only that they do not yet understand the significance.