here is an evolution based answer, some one who foremost wishes to procreate with a viable mate for the express purpose of making viable offspring. So no niggers or faggots. That includes all types of niggers: taconiggers, pineappleniggers, sandniggers, etc, who immediately abandon parental responsibility Also under faggots please include: dykes, trannies, and any one of the 58 new genders and/or 378 "sexual orientations," oh and pedo's.