There are two ways to look at it...
1 - It is a deviation from the normal, and, being unpredictable, could result in danger to themselves, or others.
2 - It is part of a 'spectrum', and until there is demonstrated danger to themselves, or others, they should be left to live as they see fit.
The first way, results in people trying to 'cure' homosexuality, as it is also a deviation from the norm.
The second results in mentally challenged, homeless people being left on the streets to freeze in -20o temps, because they refuse to go to homeless shelters.
I don't know which of th two is more cruel, but I do know that this is not a simple question with a yes/no answer.