He didn't speak against either treaty in principle, but only complained about the extent of their requirements. And he effectively ratified the ICC treaty when he negotiated for exemptions for American servicemen.
Stop telling people this stuff. It isn't true.
San Francisco Chronicle
August 21, 2002 Although President Bill Clinton signed the treaty that created the ICC, the Bush administration withdrew this nation's support of the court. Then, Washington announced that it would use military force to free any U.S. citizen detained by the court. Now, in a final attempt to undermine the court's authority, the Bush administration has threatened to cut off military aid to any nation unless it promises never to surrender any suspected American citizen to the ICC.
What more do ya want?