That's a logical fallacy. Environment plays a key role in the root causes behind some homosexuality, but it's not the only factor.
2)There is a theory about gender identity disorder that may or may not be true. Some research indicates that childhood gender identity has a high correlation with adult homosexuality.
How Might Homosexuality Develop? Putting the Pieces Together
3)Many people are bisexual and can be sexually attracted to both men and women. They are usually monogamous when they are with their current mate. I know several people who are bisexual, who have settled into "heterosexual marriage"
Okay - it's a behavior some people choose to engage in.
4)Many gays try to go straight -- and marry and then later divorce. This is very common and sad for all involved. Better to be honest with yourself about your sexuality
It's always best to be honest with yourself. But there are tens of thousands of former homosexuals, which tells us they can leave the lifestyle as Richard Weller's confession states.
5)I don't understand the phobia about same sex sex -- if it is adult and consensual OK as long as it is safe sex
There's no phobia, and if homosexual activists would leave the children alone, you would hear a lot less from us.
6)The uproar should be about "unprotected promiscuous sex". That is what spreads disease. That is the lifestyle that should come under scrutiny.
The uproar is about the children, and all promiscuous sex should be discouraged.
7)Many people are unhappy in life for many reasons. Being GLBT, given society's attitude is likely to cause misery in a person's life. The cause is external not internal.
That's been debunked many times. Here's an interesting article on it: Homosexuality and Mental Health Issues
8)I know many gays in committed relationships who would like to be married. They have very stable happy lives.
Why stop at 2 consenting adults? Why not 7? Why not same-sex marriage between brothers? Sisters? Father and son? Father and daughter? Why not completely redefine a word that that, by definition, means a man and a woman?
What's Wrong With Letting Same-Sex Couples "Marry?"
9)I know many straights who go from relationship to relationship and are unhappy.
Was there a point here?
10)I don't know what causes homosexuality, but I do believe that it rooted in biology. I was sure my son was gay from the time he was very young -- and he is. My husband and I were and are good parents. We have a loving relationship with our son and his partner
Homosexuality is not rooted in biology. And every study stating otherwise has been debunked. While it's great that you have a loving relationship with your son, there is a way out of the homosexual lifestyle, if he wants out...
11)Life is much happier if we send messages of love rather than hate
Maybe we should have tried that with Saddam? Oh, wait, you're trying to imply we hate homosexuals. You're wrong. Just because we disagree with the homosexual lifestyle doesn't mean we hate homosexuals.
Again, if homosexuals stayed away from children you wouldn't even know we were here.
The World According to PFLAG: Why PFLAG and Children Don't Mix