Knights of the Old Ways
The Knights of the Old Ways started during the Invasion. In fact, it is rumored that they were the ones responsible for that name. Faerie had an outpouring of refugees from the fallout in their home land and this faction was brought about from the fear this exodus created. As the world got more and more twisted by the fallout, people started blaming the refugees and anyone else with magic for what happened.
The Knights of the Old Ways continued to promote this idea even after the government admitted they struck first. Magical creatures died in droves because of this group and historians believe that they are the reason the era of The Invasion lasted 50 years.
This bigoted group still exists during the age of The Settling, though their numbers have reduced. During The Settling this group is starting to go the way of the KKK, but they are still bigger and more influential than the KKK was before the age of Nuclear Magic.