Typical leftist tactic, label something to sound like it supports the exact opposite of what it is really pushing.
Homsexual behavior is how you get AIDS, How is that a "pro"?
Founded in 1983, AIDS Action Committee of Massachusetts is a not-for-profit, community-based health organization whose mission is to stop the HIV/AIDS epidemic by preventing new infections and optimizing the health of those already infected. Through a cooperative and mutually supportive effort between over 70 staff and hundreds of volunteers, AIDS Action seeks to assist and constructively work with people of all cultures by providing services, education, advocacy and prevention.
That's an effective form of prevention that their advocating (sarcasm).