That’s just false. This was done with conscious intent, and this is actually documented. For example, Amherst said in a letter to Bouquet that ‘This is a good idea to spread smallpox just be careful you don’t get it yourself, You will do well to try to inoculate the Indians by means of blankets, as well as to try every other method that can serve to extirpate this execrable race.’
d’Errico wrote in his study of Amherst that “None of these other letters show a deranged mind or an obsession with cruelty.” Amherst’s “venom” was only directed at Indigenous peoples, he added.