Zapo,

there are no gay children. There are childen with a Gender Identification Disorder (GID). This is very rare, only about 0,1% of children have it (see www.narth.com) while the rate of homosexuals is 1-2% in society (according to many surveys). GID can probably be managed and healed by proper psychotherapy in most if not all cases. So noone should become a homosexual - if it came from childhood.

Where can it come from? Not sexual bullyng or (not necessarily violent) sexual abuse might often trouble ones identity and psychosexual development in childhood or teenages so that he or she can become unsuccessful in the field of normal heterosexual relationships. This might also be the result when the child has something strange in his or her personality either on a genetic basis or without it. Not GID, not necessarily something directly sexual. Just some weird particularity. That might be enough to object success in relationships. And then the false conclusion might come: "I seem to be too much different so perhaps I am not normal, heterosexual".

Zapo,

now about the "magically be spawned" children of homosexual couples.

See this article:

http://news.bbc.co.uk/2/hi/health/1916462.stm

and this:

http://www.billmuehlenberg.com/2011/10/18/social-engineers-and-the-abuse-of-children/

They are really worth reading by anyone who want to see the dimensions of this question.

The institute of marriage is in crisis because of the lack of courage, generosity and logic. In stead of patiently basing committed relationships young people jump into nonsense relationships, sexually, too, since they think that "anything goes" and "why not, no consequences". And they don't stay in committed realtionships, perhaps often because their mentality was already transformed by their own promiscuous lifestyle. Legalization of homosexual marriage would further strengthen this "anything goes" mentality.