What is wrong with it?
Has anyone here arguing against homosexuality as being natural and normal passed a basic level of high school logic education? Numerous sexually reproducing species, especially among primates, engage in a wide range of sexual behaviors. That settles the "is it natural" debate. Of course it is because it happens. Here is the argument about natural vs. unnatural. Does it happen? Yes. Do we observe it? Yes. Is there some unknown as to why it happens? No. Therefore it's natural.
The normalcy debate. Only by confining the definition of normal to a base mathematical concept the existence of homosexuality and it's practice is normal. Why? Because first of all it is natural. Second of all there is no known disease which causes homosexuality. The definition of normal differs among different scientific endeavors. Among the maths it involves the means. Or the averages for some. However, despite that, just because something doesn't meet a mathematical average doesn't mean it isn't normal in the psychological or medical sense.
So what's wrong with it? Everything is wrong with it. Because the individual who created the thread did so in absolute ignorance.
That's ...... "The End"........as another poster who likes to state I'm about to address.
Homosexuality is sin not a disorder
It's a sin only if an individual is willing to believe in the mythology that you wholesale believe in. I don't. So where are with this? You believe it's a sin because some old scroll declared such. However, I rely upon natural observation and recognize that the idea of "sin" is nothing more than a cultural construct varying from one ethnic group to the next. Yet you declare it is a sin, hands down. I disagree. I say it is not a sin. And my statement carries as much weight as yours.
So where are we now?
It is a disorder caused by lust and sin.
Here's the "The End" individual. There is no scientific evidence showing that homosexuality, or other forms of human sexuality to broaden the argument as would be appropriate, is a disorder caused by lust and sin. Hell, even the certain protestant groups decided that heterosexuality was a disorder because they viewed the damnation of some ridiculous deity upon female kind when kicked out of the absolutely absurd mythology of a "Garden of Eden" should define sexual congress rather than relying upon natural observation.
I completely disavow your mythological understanding of sin. I say it's nonsense.
Care to provide empirical evidence otherwise? I seriously doubt it.