No, it is generally false that the <span>Civil Rights movements of the 1950s and 1960s did not do much to help African-Americans, since in fact there were many laws passed during this time that made the lives of African Americans better. </span>
Explanation:
I believe they used the phrase "Manifest Destiny." In other words, they believed that it was their destiny to have the land and to build upon it.
The damage outweighed the benefits to the American people because it meant they got to "have more." In other words, more money.
The government could have made an agreement with the natives and possibly allowed them to continue living on the land, perhaps, that would have caused less wars or battles in the end.
The answer is A. a change to the constitution.
Hope i helped ^_^