Obama's church buddies on his new gay marriage stance

[Godscreated]

Oh yes they are, nothing has ever proven otherwise.

Obviously, you've never looked into it.
American Psychological Association:

There is no consensus among scientists about the exact reasons that an individual develops a heterosexual, bisexual, gay, or lesbian orientation. Although much research has examined the possible genetic, hormonal, developmental, social, and cultural influences on sexual orientation, no findings have emerged that permit scientists to conclude that sexual orientation is determined by any particular factor or factors. Many think that nature and nurture both play complex roles; most people experience little or no sense of choice about their sexual orientation.

http://www.apa.org/topics/sexuality/orientation.aspx#
or
http://www.apa.org/helpcenter/sexual-orientation.aspx <- This passage appears on both of these pages.

Psychology Today:

[...] The finding suggests that genes play an important role in the early development of sexual identity, and probably have much to do with shaping gender in the mammalian brain. "This refutes the notion that hormones are the sole influence in gender identity," says Vilain. [...]

http://www.psychologytoday.com/articles/...r-identity <- Source

You're full of shit is what you are.

To the contrary, I have looked into it and what you have quoted is what's there, nothing but speculation, thanks for bring these things up. One more thing genetics can necessarily be rejected because of this, in most cases when one identical twin shows homosexual tendencies the other does not. Since identical twins share exactly the same genes there must be choice involved.
Using the type of language you do shows immaturity, ask a psychologist.