So...Are the Darkin Evil?

Are they? Varus says he wants to avenge his kin. His Darkin. The way he describes it, he says that "humans" destroyed his entire PLANET. And basically says "You think I am the monster? Oh we were creatively brutal, but look around you."

Still, this could be extremely biased.

But since they come from another world entirely, it makes me think of the Targonian Space Empire. Perhaps they, using Human forms destroyed their planet. I still don't quite grasp what the Targonians are, truly, but Darkin seem much easier to understand. It was indeed mentioned by Aurelion that there were many space faring peoples, who traveled from world to world.

The Darkin if we judge them by the few we know, are all warriors. But is that what common Darkin were really like?