I am very surprised by some of the comments in this thread, especially the one where the basicsofsikhi guy said homosexuals should remain celebate for their entire lives. I thought he was an Oxford graduate, very disappointing to hear something like that come out of his mouth, especially considering the vast number of people who are influenced by his videos.
The fact that we have gotten to 53 pages talking about whether homosexuality is acceptable in Sikhi is bittersweet. On the one hand, it is great to see religious people being able to talk about such a controversial topic in such a respectful and civil manner. You may not all agree with each other, but at least you value the other person's opinion and do not try to shut them down or resort to name-calling and throwing accusations. Other religions could learn from your example.
On the other hand, at least in my opinion, this discussion should have ended on the first page. It is difficult for me to get my head around why any Sikh would have any interest in the sexual orientation of someone else. If it was such a horrible thing, you'd think it would be mentioned at least once in Guru Granth Sahib Ji, but it isn't even alluded to. It can only mean that the Gurus did not care whether someone was homosexual or heterosexual, I'm sure they believed that it is your actions, not your orientation, that defines you as a person. The 5 thieves are mentioned over and over again because they are the main obstacles in a human's path to living a truthful life. Homosexuality was not mentioned for the same reason the Gurus did not include which color t-shirt was the "best" or most "righteous" to wear- the color of your shirt, or the object of your attraction (be it male or female), has no bearing on your value as a human being.
Then there are some people who agree that homosexuals do not deserve hate, but there should be different rules for them, they shouldn't be afforded the same rights (ex: marriage) as heterosexual Sikhs. This reminds me of one of the first stories I heard pertaining to Guru Gobind Singh Ji. The Khalsa army was in battle with the Moghuals, and Bhai Kanhaiya Ji was tasked with providing water for the injured Sikh soldiers. When he got on the battlefield, his co-religionists saw him giving water to the Muslim soldiers as well, and reported their findings to Guru Gobind Singh Ji, who summoned Bhai Khanaiya. Bhai Khanaiyas reply to Guru Gobind Singh Ji was that on the battlefield, he did not see Sikhs and Muslims, he did not see Khalsa or Mughal, he only saw human beings, each of which had that same light of Waheguru inside of them. It did not matter what side they were on or what their religious beliefs were, everyone got water because every life is precious and on the inside, we are all the same. And of course you know what happens next, Guru Gobind Singh Ji hugged Bhai Khanaiya and told the Khalsa that this is what a true Sikh looks and sounds like.
What would Guru Gobind Singh Ji say to the Sikhs today? His entire family was murdered by Muslims, yet he sought no revenge and did not hurt a single innocent person, no matter what their religion was. His army was in battle, and he approved the serving of water to the enemy soldiers. On Vaisakhi 1699, he took Amrit from the hands of the "lower caste" (who at the time were in roughly the same position as homosexuals are today).
Do you think this same Guru Gobind Singh Ji would be proud that his Sikhs are refusing Anand Karaj for 2 individuals who accept Guru Granth Sahib as their eternal Guru and wish to live a Gurmat lifestyle, just because of the way they were born? Would he say "well, at least they're getting treated better than they do in other religion", or would he be disgusted that Sikhs, who are supposed to be the "dust of the feet of all", not distinguish between friend or enemy, see that same light of Waheguru in all, are today trying to impose their own beliefs onto a group of people who cannot change who they are?
I am a lurker on a few other Sikh forums and just today saw a thread on one of them about whether it was permissible for an Amritdhari to share food with someone who has not taken Amrit. Even after Guru Nanak Dev Ji preferred to share food with the poor and weak than the rich and strong. It hurts me, even as an outsider, to have to read stuff like this, because I feel like the Gurus would be rolling over in their graves if they knew.
Sorry if I offended anyone, and I know not all Sikhs share the same views, this is just my opinion.