Final answer:
Chief Seattle implies the decline and potential disappearance of Native American societies due to the loss of their lands and autonomy, as expressed in the sentiments of his contemporaries like Chief Sitting Bull and Chief Joseph, who highlighted resistance and suffering.
Step-by-step explanation:
Chief Seattle likely implies that the lives of the "red man" or Native Americans are facing inevitable decline and perhaps eventual disappearance due to the impacts of settler colonialism and the loss of their lands, autonomy, and way of life. This can be surmised given the context of historical events and the sentiments expressed by contemporary Native American leaders. For example, Chief Sitting Bull's statement highlights a resistance to white domination and an insistence on maintaining freedom even in the face of death, reflecting the struggles of Indigenous peoples. Moreover, Chief Joseph's surrender speech poignantly captures the dire circumstances and deep suffering experienced by his people, further underscoring the trials faced by Native Americans as settlers expanded westward.