Homosexuality is a lifestyle choice. Some people choose to  freely engage in the immorality and depravity of embracing homosexual lifestyles. 

Genetics.  Just look at intersexed individuals.  Plenty can go wrong with the developement of the fetus, both small and large.  Why wouldn't sexual preference being among these glitches?

Okay, just wanted some clarification. A few thoughts though...

I don't think limp wrists and lisps should be grouped the same as the way you dress. In some cases, limp wrists and lisps aren't a result of learned behavior. For example, difficulty speaking can be the result of a disorder in a person's motor cortex, that regulates voluntary muscles (which could occur because of head trauma or they could simply be born that way). In that case, it could simply be due to the physical state of a person's brain. I don't think people develop limp wrists or lisps as a result of what they experience. I have no way of knowing though.

As for the second bolded statement, there's probably a lot of truth to that statement. But, it's a two-way street. There's an input (external stimuli), and the brain processes that stimuli. Both the brain and the external are ultimately the sole factors in how a person thinks/acts. Where you and I probably differ is the fact that I don't believe most people's brain function differs in any major way. In any case though, I don't think we can prove whether brain function or external stimuli is the bigger factor (it probably varies from person to person anyway). I personally doubt that people are born predisposed to specific tendencies, at least in any major way, but that's just my own opinion.

the stereotypical average used on how many gays exist in the world is around 10%, yet this studdy only speaks of those who would verbally admit it....and we know that still many people are uncomfortable with coming out. I estimate its really like 13-15% that are whole heartedly gay. This does not include the percentage of people that are more bisexual in nature, which from personal experience....women are about 50/50(maybe its just the girls i know lol).

You should read my long post on the subject in this thread which I go into the false belief that there is an A or B gene that says gay or straight, rather it is really just genes appropriating hormone levels which give us our sexual preference on a very large scale.

Seratonin is the chemical in the brain that causes the "love" feeling. I mean when you break it all down, humans think they are higher functioning being but in reality we are still very basic organisms at our core almost entirely being driven by chemical/mechanical make up in our bodies to perform as Life needs us to be sustained.

And some of you have no idea how genes work except for when it comes to outward appearances. First off, there are things known as recessive genes. These do not appear all the time, they are dominated by another gene type usually and only surface out of playing the odds game of dice(if you roll it enough times, its bound to fall on the number you want). Red Hair is one....hence it is believed to be going almost completely extinct. Blue Eyes are too. Yet we are talking about something you can't see and the data is fogged by social structure. Hand dominance is one, where it is very common for people in the same gene pool to all write with the same hand....yet that data can be manipulated to throw you off. For instance...Me,my brother, and my mom, all left handed. My sister was right handed but yearned to be just like us so now she is ombidextrous, doesn't change the fact she is still Right Handed. Height is another recessive gene that weaves in and out of families, as is twins. There is the ground breaking incident where that white family had an entirely black child(not light skinned, but brown). There is nothing that says your offspring are always going to be carbon copies of you, genes like to play russian roullette with this because it understands diversity keeps the world progressing

I will look into that link, but doesn't it fall under 'genetics.' In any case, I doubt I'll be editing the poll now, since if you add a new option, all previous votes will be lost.

This is a joke right?

What about it is "immoral" exactly? Even if Religions such as Christianity were your basis, like many others, morality is based on a simple principle. Do unto others as you would have them do unto you. By following that you can decide what is moral by just asking "Does it hurt me or another person in some way? if it does, you shouldn't be doing it". People frequently want to lump gay in with Beastiality or Pedophilia. There lies the key difference, Both of those infringe upon anothers free will (Animals cannot consent to sex with a human due to not being able to speak, and children cannot consent with sex with anyone due to their hormone fluctuations that make them highly acceptible to infuences). Homosexuality is based on a construct between two CONSENTING adults(if it wasn't it would be rape, or malestation). No one is harmed in any way.

Studies show that the levels of testosterone in gay men are equal or even higher than heterosexual men. The levels of testosterone get higher in older women and get lower in older men. There are also some interesting experiments on male rats show that the estrogen injections don't affect the sexual orientation of male rats that haven't been castrated. That made me believe that genes and hormones levels have very little to do with our sexual orientation, in except of some very extreme cases that don't apply on the average gay man.

Is it a psychological factor ?, well, Studies show that child sexual abuse is a contributing factor for homosexuality ( rates of childhood sexual abuse in gay men are approximately 3 times higher).

I believe it is more of a psychological and environmental factor than genetic. Could it be a mix of all that ?, it could be. What I know is that the matter is not so clear-cut as many people of both camps would like it to be.

I choose environmental, if you are in an environment where you have a penis in your anus that makes you gay.

You pretty much match my own perspective on the situation.

Watching Brokeback Mountain.