It has been noted by some, that homosexual births go up in times of great stress. This would be an evolutionary advantage after war, or famine, to slow the birth rate, allowing the tribe to recover, rebuild, and regrow enough food to support the tribe.
Something very similar from the book I have been referencing, "It (homosexuality) may be one of nature's ways of controlling population, and hence completely natural as a normal control group for the general population." And it continues; ".....it is simple-minded and wrong-headed to call it perversion, as if it were something maliciously chosen by human beings. It is stupid and cruel to attempt to force such true homosexuals to see their sexuality otherwise; they simply can't. No amount of will power and no amount of spirituality can alter the fact that they are erotically aroused by members of their own gender.
.....call them in faith to make of their homosexuality a sign of the Kingdom just as heterosexuals are to do."