I think religious figures have a tough time knowing what to say, as ultimately their source material for such declarations is anachronistic and authored by someone living in a very different world.
I don't recall Buddha specifically declaring homosexuality to be immoral or sexual misconduct, but there are figures representing religious institutions who do so.
There are many threads about the topic, but I haven't seen anything conclusively linked to Shakyamuni.
Can you have homosexual desire and still be a Buddhist?
Can you actively practise homosexuality and still be a Buddhist?
Is the above much different from asking if you can be a Buddhist if you desire or have a glass of wine every night?
If you take Vows, are you bound for hell if your interpretation is wrong or differs from your Guru's - and what if he or she changes their stance on the issue?
It is sometimes amusing to see how religious institutions squirm, wriggle, evade and obfuscate for fear of offending someone on one or other side of the debate on where you put your body parts.
I prefer religious leaders to be clear, like Hsuan Hua. Then we can decide for ourselves if we should follow them and their interpretation of Buddhism.
Christians have the same issue, and the same squirming clerics.
Surely it's an easy question for them to answer so people can decide - is homosexual behaviour a form of misconduct they want their followers to avoid?
There are many forms of bigotry and exclusion within Buddhism, and they are rarely consistent or static - look at what happens if the being you are told is your enlightened Dharmapala is suddenly classed as a demon by your religious leader.
Who knows what may be next ? Therefore, it is vital for us that Gurus are honest and state their views simply - as Hsuan Hua did. Now people know exactly how to behave in terms of being his follower.
Here's one link I found:http://www.religionfacts.com/homosexuality/buddhism.htm