The rhetoric is ratcheted up to 11 after last week's overwhelming rejection of same-sex marriage in the state Senate, which left gay-rights activists reeling. "It's going to be a bloodbath," one gay "operative" tells the Daily News. "We're going to use every single weapon in our quiver to take these people out. We either need to replace them or scare the hell out of them so they do the right thing." Activists say they'll focus their efforts on the Democrats who they feel betrayed them, and number one on the list of Senator Joseph P. Addabbo of Queens.