It is entirly possible to be self hating as well as hating everyone else. The case presented here sounds akin to pride or narcicism. Take it from... An abused victim standpoint. They'll hate themself, as well as everyone else for fear of judgemnet. A really depressed person can hate themselves and hate others in an envious way. There are numerous cases. Granted the original pride and narcicism is possible, but the idea isnt exclusive.