Britannian Purity League

The Britannian Purity League was an organization in Ultima VII devoted to driving the gargoyles off of mainland Britannia. The organization primarily operated in areas with a high concentration of gargoyles and humans such as the desert city of Vesper. It was designed to be similar to real life hate groups. However, while they advocate open hatred, they themselves don't dare to operate in public, since hateful speech such as the kind they spew is forbidden in Britannia. This explains why Liana in Vesper acts so carefully when giving the Avatar a scroll with propaganda.

The propaganda that the Avatar sees in Ultima VII is "Keep Britannia clean! Send the gargoyles home!"