For argument's sake...<quoted text>
If homosexuality is not a choice, than one is born that way. And if one is born that way, then that particular trait had to survive millions of years of evolution. Basic evolution is that idea that those things that increase one's chances of survival (fight/flight/procreation) are passed on from generation to generation and species to species. Those things that hurt the basics (fight/flight/procreation) eventually die off and no longer exist. Think of an elephant. It is not very fast but it is huge. So while it can't run away its size makes it hard to kill off. Now make the elephant the size of a puppy but no faster. Small and slow. That's lunch unless it develops some other survival mechanism. Homosexuality creates a lack of procreation. By definition that goes against basic evolution - it doesn't help a species survive, it hurts the chances of survival. Adam and Steve go off, set up a home and have a wonderful life. But they never procreate and eventually the "gay" gene dies off. That's why I bring up the dinosaurs. If they are born that way then the homosexual trait had to survive tens of millions of years and millions of animal generations before humans ever came around.
Another problem that we haven't even started talking about has to do with math. Best estimates are that less then 2% of the population is homosexual. Go back 50,000-100,000 years when humans were just starting out and the population was very limited in size and location. So in a tribe of 100 there were 2 homosexuals. They join but don't procreate. Again, homosexuality dies out long before we ever get to modern man when the world's population made that small percentage a big number.
That's the challenge. Create a plausable explanation of your belief that homosexuality isn't a choice.
So do you think homosexuality is something that occurs in the brain making someone think differently? Different than the norm. Is that possible, in your opinion?
Some people suffer from depression and/or anxiety. Researchers don't know why some people have these issues, but conclude that often times there must be something different in the brain causing this. Does that make it less "real"? Does it make it more of a "choice"?