Boxer's cruel death is a result of Napoleon's tyrannical rule in Animal Farm. Though some animals recognize that they are living under...

Complacency, fear and simple-mindedness are just a few of
the reasons the animals refused rise up against the tyrannical rule of the pigs in
George Orwell's Animal Farm. Few of the animals understood that
Boxer was being transported to the glue factory; even when told of the cruel deed by
those who did recognize it, many of them would not have accepted the fact that Napoleon
had ordered it. Their beliefs in the propaganda that the pigs perpetrated were stronger
than their own natural instincts. The animals must have known that they stood no chance
against the pigs and their dog enforcers, so they accepted the decision as just another
act that served in the best interests of the farm. Events such as the spontaneous
demonstrations and Moses' tales of Sugarcandy Mountain helped to erase the animals'
memories of the treachery.