Teribus, there's almost no point in answering your foolishness.

Point 1 Stilly
The Plains Indians had not been "impacted by European diseases for over two hundered years" at the time of the battle of the Little Big Horn.

Yes, they had. Europeans had been visiting North America for hundreds of years, touching on the coasts, traveling up the rivers. Mexico was seriously colonized in 1540, the Atlantic coast of the U.S. a few decades after that. Europeans brought diseases that traveled inland up rivers, via Indian travelers and traders, animals, and trade goods through Indian trade routes and wiped out populations long before they ever even SAW Europeans. Capiche? Want a book to read? I can recommend several. An easy one for you is Keeper of the Game, by Calvin Martin, which has a kind of whacko conclusion at the very end, but has stunningly good research all the way through until then.

When Europeans finally arrived in many inland areas the trees had already grown up over former Indian agricultural or village or grazing areas because entire villages were wiped out by measles, mumps, influenza, many things that hadn't been here before so there was no resistance. Scholars have extrapolated pre-contact populations to have been in the millions, and many millions died by way of introduced disease. By the time colonizers reach inland they in many cases thought no one actually had claim on the land because the populations were too sparse to continue to keep it in the "normal" way, to burn, to hunt, to grow, to gather, to raid, to do whatever.

Also consider the pressures of colonization. When the New Englanders arrived and they pushed the groups like the Iroquois tribes into the northern plains, those inhabitants of the northern plains had to move further west and south. Get it? The Sioux (Dakota, Lakota, many others) were originally a woodland tribe. So once again, the Indians were moving and were impacted before the Europeans even reached them.

This responds to only one part of your idiotic message. Don't presume that because I didn't answer any more of it that I in any way agree with any of your conclusions.

SRS