In general I think North American's are extremely disconnected from the food "process." For many Americans food starts at the grocery store and ends in their mouth or the garbage. We do not see the work that goes into making our food, meat or otherwise, and are disconnected from the impacts. We have an idyllic image of a farm in our minds, but that image does not reflect the current state of our food systems. We do not see the giant machines required for industrial agriculture. We do not see the acres and acres and acres of mono-crops. We do not see the heart wrenching conditions in CAFOs. We are not immediately impacted by the dead zone in the Gulf of Mexico or antibiotic-resistant super bugs.
It is easy for people to consume when we are not aware of the impacts. I do not think North Americans value soil degradation, biodiversity loss, aquifer depletion, or animal exploitation, many people are just uninformed. I'm sure if people were responsible for raising their own livestock and butchering the meat, people would be eating less meat. I think despite how connected we are today, people life awfully disconnected lives. We are short-sighted, rarely considering the impacts of our choices beyond our immediate surroundings. We are pressed for time, for some reason, and, as a result, choose convenience over quality and immediate gratification at the expense of future longevity.