I've noticed through the oddworld games, the regions resemble certain continents of our world. AO, AE, and MO all take place in a region of oddworld that roughly resembles Africa, with the natives being used as slaves and such. In SW, the region resembles an early America.
With this in mind, one can only assume that there has to be a region of Oddworld resembling Europe. Maybe these "Kanzumers" are native to this region.
__________________
|