Because it's happy to take gay money and gay time and labor while creating yet another commission to "study" gay issues in the hope that we can be better managed. The bishops are creating yet another theological subcommittee (and a secret one this time), while President Obama wants to create yet another commission on LGBTs in the military.
Remind me again of how long ago were the Stonewall riots. How long have our issues been "studied" to death? Who else in this country and in this church have had their rights and their marriages put up for a vote? Who else has been told to go stand in a "crucified place" over there behind the potted palm in the corner?
Face it sisters, we're the Lord's own inconvenient little shit-storm of a constituency.