More on "gay culture"

I'm still looking for guidance on what the Vatican means in its statement that individuals cannot be admitted to seminary if they "support the so-called gay culture."  Amy Welborn offers this:

[W]hen it comes to guidelines, as reasonable as it might seem to do the "no homosexuals in the seminary thing," it doesn't get at the problem. The problem is not, in simple terms, the homosexual priest. The problem is priests who don't believe what the Catholic Church teaches on sexuality, who don't preach it, who don't witness to it in the confessional, and who don't live it in their private lives. . . .

I've already heard lots of little snide remarks and questions about the "gay culture" aspect of the document. Well, this is an attempt to get at what I'm talking about, and to me, the whole thing would be far simpler if the document simply emphasized that a candidate for priesthood is indicating his sense that he is being called to minister to God's people as a Catholic priest. Brilliant. Which means that when it comes to this foundational revelation of what the creation of man and woman as man and woman implies, symbolizes and concretizes - they are on board. Completely. And they will embrace what the Church teaches, will teach it themselves, and will commit to helping, with compassion and understanding, Catholics live this out themselves. Again, brilliant.

I guess I have trouble seeing how targeting "gay culture" does the trick.  Maybe I'm missing the nuance because I don't have a firm enough grounding in moral theology, but I see the Vatican providing more fodder for those who wish to caricature the Church's teachings on sexuality as driven in large part by anti-gay prejudice and fear.  The question remains, in my mind, why not focus on celibacy?  Why not focus on the "sexually permissive culture," instead of the "gay culture?"

Rob