You got it exactly. These vile Muslims want fair looking girls to pimp out. Blond or redhead. Dyed blond is enough to send their Muslims clients into (phony god) Allah's furthest realms of sex fantasies
Japanese are the same and employment for such women as restaurant and bar hostesses is very remunerative. Roughly speaking such fair looking "Nordic" women are extreme catnip for all third world men. A blond American woman doing NGO work in Iraq will have many more problems with the native men than a dark haired woman.
Japan is a third world country?