The current situation works a little for them. They cut costs, and can cost shift more than ever. There is no sector of the employer community ready to move. Don't go there. Last time around, unions responded based on the needs of their employers.
Cost shifting puts more pressure on the members.
So new AFL-CIO thrust is on affordability, to help folks buy into new system. More emphasis on rewarding employers who provide some level of coverage, and punishing those who don't. Clear assumption no sweeping access changes likely, so help groups act as individuals. Unions will be more involved in HMO reform and regulation than in universal health care efforts. The labor movement is beginning to focus on a defense of the employer based health care system.