hecate wrote:
there is a high probabilty that this is why nature creates homosexuals. there is evidence (new scientist magazine, years ago) that there is a higher percentage of homosexuals in highly populated areas. also, there is an increased chance of someone being homosexual the more older siblings they have, although i have known gay people who are the eldest out of their siblings / an only child.
couples in stable homosexual relationships are also the perfect solution for children who, for one reason or another, are unable to live with their biological parent/s.
There are more gays in cities because there is more social freedom in cities - in small towns, everyone is in everyone else's business and they repress behaviour deemed undesirable. So people who don't fit in tend to move to large cities, where the social network is looser.
There is a high probability that nature does not have the ability to consciously do anything - evolution occurs through blind mutation. Environmental stress might lead to developmental conditions that lead to more gays, women who have multiple children might have some of the biochemical switches in various positions that lead to gayness in later children, but that is very different from giving nature a personality and agency.