1.- The have fueled in him great animosity toward white people.
2.-Parallelism contrasts the dishonorable behavior of white people with the admirable conduct of Native Americans.
Explanation:
Dark Hawk is talking his experience of being beaten by the fighting of the white man against his kin and him being detained. He proposes that is the best way to endeavor to right the wrongs the white man has visited against him ie by opposing the white man's venture into his domains.
He believes the white man to be beguiling and just amicable so as to figure out how to trick the Indian. Truth be told, Black Hawk would most likely be upbeat to perceive how the First Nations people groups have increased as of late and acquired advanced education and figured out how to fight the white society in the courts and with barricades and exhibitions, and so forth and get some imperative land claims like the Tsilqhotin one in British Columbia, Canada.
It means conditions that are on the margin, the margin being that region of the operational envelope that is right on the edge between acceptable and unacceptable.