Peter,
You shouldn't be confused: there will always be people of limited intelligence and understanding who will find offence in any statement, picture, opinion or attitude that does not conform to their severely restricted mind-set.
There is nothing to be found on the internet that transcends the barbarity of certain groups that rape , murder, mutilate and gloat over their actions, and post their obscene videos to the world, to compare with the images that are complained about here.
Perhaps certain people need a reality check, and professional reorientation help to rejoin the real world.