That was a great story. I, too, have some wonderful homosexual friends. Many are extremely intelligent and talented.
I happen to think this is something hard-wired in the brain, something people are born with. The people I know sort of grew into it during puberty; it wasn't a conscious choice. I don't think we should punish people for pursuing happiness with other willing adults.
Persuing happiness with another adult is none of my business, but many, certainly not all, are off base when they want to take it into public.
Just because the arugment is made that a certain behaviour is observed in the animal world certainly doesn't mean society should accept folks relieveing themselves on every potted plant at the mall as natural human behaviour also.
If someone chooses behaviour outside the norm of civil society that's their choice, civil and social society certainly has to right to say, "not in my face you don't".