That's like saying because there have always been schizophrenics, that must mean there's nothing wrong with it.
And as it happens, social constructs often DO dictate who identifies in one way or another, just as it dictates who will act on violent or criminal impulses in many cases. In a society that actually puts a certain amount of onus on the individual to be responsible for his own actions, those who can suppress urges that go against societal mores will usually do so. In a permissive society, fewer people feel any need to restrain whatever whim crosses their mind. And believe it or not, it IS possible to convince oneself that one is gay. Not saying that's the case with all of them, but it does happen.
The law of supply and demand applies to everything about human society.
No it's not. Gay folks can no more choose who they're attracted to than you can.
Tell me, when did you choose to be straight?
Do you believe that you could be coerced into a homosexual relationship and enjoy it?
What makes you so sure I can't choose who I'm attracted to? Do you really think you HAVE to have so little control over your own mind, and merely exist in a state of helplessness before your all-powerful subconscious?
Also, did you miss the post about "who says a choice has to be conscious to be a choice"? Or were you just in such a rush to kneejerk out your favorite "Gotcha!" talking point that you couldn't be bothered?
You might want to consider that you know jack shit about me or my personal life before you rush in with your "Aha!" argument attempts. But for the record, any psychiatrist will tell you it IS completely possible to be coerced into a relationship that you would not have freely chosen and still derive some enjoyment from it. Hell, people get into toxic relationships all the time. Do you really think they're hating every second of it, and getting no pleasure from it at all? Doesn't make it any less bad for them.