Kilgore Trout
Misanthropic Humanist
Research tends to disagree with you
"Research suggests that the homosexual orientation is in place very early in the life cycle, possibly even before birth. It is found in about ten percent of the population, a figure which is surprisingly constant across cultures, irrespective of the different moral values and standards of a particular culture."
Your problem is obviously in giving more weight to research than the quantity of people standing on top of buildings yelling things.
In summary: people standing on top of buildings yelling things > scientific research
Now you know.