This issue is very interesting and important to our society. The Torah prohibits homosexual conduct for both Jewish and Not-Jewish people alike. Many people seem to think that being "gay" is a genetic trait that someone is born with. Therefore according to their views it should be legalized, tolerated and celebrated. The Torah of Truth tells us that homosexuality is not the proper conduct for a person to be involved in. Even though the Torah recognizes that different people may have different desires, the Torah does not prohibit an act for which a man cannot hold himself back from doing. And as popular as it may be these days to accept homosexuality as healthy, doing so robs the person of a fighting chance to stop his destructive behavior. There is so much that can be said about this subject. The video below and link to their website provides a lot of great material to learn from. http://www.jonahweb.org/index.php
here is an expert from a Sicha of the Rebbe that can be found on the website:
There are those who argue that an act that brings pleasure and gratification is, or even must be good. This rationalization is analogical to taking a deathly poison and coating it with sugar. Along comes someone and says, "I see sugar, there is no poison in this sugar pill." To prove his words, he tastes it and swears it is sweet! Someone else may come along and say, "I don't care if there is poison in the sugar, so long as I can enjoy the momentary pleasure of the sweetness, albeit in an abnormal fashion, I don't care what the consequences will be!"
Certainly, they themselves will eventually very strongly complain against those who misled them, and also against those who saw what was going on and did not do all that was possible for them to do, to prevent it from happening.
It makes no real difference what causes an individual to presently choose this form of relationship. Even one who was born with this inclination, and was not educated in his youth to correct it (no matter who is to blame) and is now an adult, must also be motivated to educate him/herself, now; for it is still just as destructive, it is still just as abnormal, etc.