Charles I have to disagree. I believe they are born like that. I think if you did a poll amongst homosexuals and asked if their upbringing encouraged homosexuality or if they're parents were ok with it in anyway, you would find that a very large percentage of them come from homes that look down on such things.
Here's a link to check out. Not saying its right or wrong or I agree or disagree it is simply something to think about.
http://www.time.com/time/health/article/0,8599,1815538,00.htmlSent from my DROID X2 using Tapatalk