People don't need to have experienced something firsthand in order to have a "self-righteous, smug and viscerally hostile attitude" towards it. In fact, they ar

People don't need to have experienced something firsthand in order to have a "self-righteous, smug and viscerally hostile attitude" towards it. In fact, they are more likely to be hostile to things they haven't experienced. This seems to be genetically programmed, as it transcends cultures and history.