Most accept it as a matter of fact that either fetishized lust, rape, trafficking, or prostitution is the reason for the mixing, unless there is a nearby community of mixed blood that is ‘breeding true’.
Kalurian Halfbreed: Half Klaurian babies take the species of the mother to ensure an easy birth that does not kill them. Humanoid offspring have vaguely horse-like features – “horse face”, large with thick brownish skin, with an emphasis on physical attributes over mental.