Why were the carpetbaggers and the scalawags targeted by the KKK?

After the civil war the south was in ruins. The battles had been fought on farm land, plantations were burned out, the money was no good, there was a shortage of food, wounded and defeated men were making their way home. The carpetbaggers were seen as thieves because they came in to buy land and take over the defeated south. They were from the north and also seen interlopers to the defeated men and women.