The immediate catalyst for the Boston Tea Party was actually a tax break not increase on British Tea?

Patriots also downplayed the tea action because of its devastating impact. That single act precipitated harsh retaliation from the British, which in turn led to a long and ugly war. ... The immediate catalyst was a tax break—not a tax increase—that effectively made imported tea more affordable for colonists.

disease was the number one killer of native peoples. they had had little exposure to the diseases of europe. this led to some villages being almost completely wiped out and some tribes destroyed.