Sodomy is an intrinsic evil.
Sexual relations between anybody other than husband and wife is evil.
Justifying - affirming - applauding - celebrating a sex-driven relationship between two men or two women is evil.
"Gay Marriage" is evil.
But living together and supporting each other is not an intrinsic evil.
The Church has nothing against men living like brothers --- as celibates --- assuming we are not talking about deliberate exposure to a near occasion of sin.
I'm trying to make important distinctions here.
I'm not saying that if, for instance, two women are mutually supportive, that justifies sexual perversion. I AM saying that if the two make a decision to turn from their sin and to live chastely, the mutual support would be a good element of their life together.
Obviously. However, the document is clearly referring to "homosexual unions".
Oh, where's the fun in that?
But seriously, I get the impression that some "conservative Catholics" don't believe in selfless love and friendship, independent of sexual use, for anyone.
Fortunately, I know that's wrong, because it wouldn't be a world worth living in if nobody just liked you, without wanting to use you.