Nah. Just failure to follow basic hygeine they knew from their own Bible. E.g. Jewish communities, who followed instructions like "You must have a place outside the camp to go and relieve yourself" as opposed to dumping chamber pots out the window into the street (Deuteronomy 23:12) were not affected by the Black Plague. Naturally, the Europeans attributed this to "witchcraft".

The natives worked together with many colonists for a century. But there was a lot of treachery, from Trail of Tears to Smallpox Blankets to Whiskey deals (natives more susceptible to alcoholism), as well as tragic misunderstandings like the sale of Long Island.