Board Thread:Wiki Discussions and Support/@comment-26152226-20150323185045/@comment-26302001-20150325010735

I don't think he hated the Uchiha at all, they were just the most problematic of all the clans from his experience with them. It was most likely criminals and people sentenced to death he was using for the technique. Better than wasting money on feeding people who are in jail for life right?