Agriculture makes people dependent on a few domesticated crops and animals instead of hundreds of wild food sources, creating vulnerability to droughts and blights and zoonotic diseases. Agriculture makes for sedentary living, leaving humans to do something that no primate with a concern for hygiene and public health would ever do: namely, living in close proximity to their feces. Agriculture makes for surplus and thus almost inevitably, the uneven distribution of surplus generating socio-economic status differences that dwarf anything that other primates cook up with their hierarchies. And from there it's just a hop, skip and a jump until we've got Mr. McGregor persecuting Peter Rabbit and people incessantly singing Oklahoma.