Sure, buying meat from cows and pigs which are kept in horrendous conditions is "ethically awful" but I don't call meat eaters(that includes myself) motherfuckers. As far as I can see the only problem with rhino horn is that people kill wild animals to get it - once rhino is farmed, there's no difference between that and farming cows in my mind. In fact it's much better since rhino farmers don't kill rhinos to get the horn.