Your view on people's opinion of the I.R.A is incorrect. Personally most people I know seen a need for the I.R.A during the 70's and 80's to counter-act the behaviour of Thatcher and governments before her. People acknowledge that atrocities such as Enniskillen and Warrington shouldn't have happened but surely the nationalist community weren't expected to lie down and accept oppression.
The same people are now growing to hate the provisional movement because of incidents such as the Robert McCartney killing, Northern bank and general way Sinn Fein conduct themselves in and around what were Republican strongholds. I for one was shocked and by the continued success of Sinn Fein in the last election but when you ahve such feeble opposition in the S.D.L.P it was inevitable.