The army discussed giving blankets that were collected from soldiers who had died of smallpox to Indians. Nobody can prove that they did it, but it is a fact that they seriously considered it.
Yeah and? biological warfare of this nature goes back at least as far as Genghis Khan and even if it did happen it doesn't support a case for an accusation of genocide, one might label it an "atrocity" or an "act of barbarism" but that's as far as it goes without some evidence that it was carried out as a deliberate policy designed to exterminate the Native Americans.
If you want to split hairs about whether or not the systematic slaughter of indians was genocide, or not, be my guest.
Since when is adhering to the actual meaning of words instead of just making up definitions as we go along "splitting hairs"? By continuing to blatantly misuse the term you diminish the importance and impact of the cases of ACTUAL genocide that have taken place.
When Andrew Jackson banished all tribes east of the Mississippi river, he did not even differentiate between those that were literate, and farmed their own land, from those that hunted on reservations. The death rate on the Trail of Tears was horrific.
What does that have to do with genocide? We could spend all year discussing how conquered populations have been ill-treated by their conquerors going back to the beginning of recorded human history. The native Americans represent a group of conquered civilizations, their civilizations were too weak to defend themselves from the Europeans and thus they join a very long list of others that met the same fate and I don't see anybody weeping for say the Etruscans or the Hittites, what makes Native Americans so special?