Missionary groups tend to target Native Americans so that they can get them to believe in their same Christian beliefs.
The target group were groups of christianity.
newdiv
It is easier to answer this question in the reverse, being: What abuses were not practiced against Native Americans: The answer is None at All. Native Americans were used as slaves, target practice for guns and swords, starved, beaten to death, raped to death, biological warfare (introduction of diseases), medical experimentation, etc. In fact Hitler praised the US Government for its treatment of Native Americans (if that gives you an ideal of what inspired his actions, and its source).
Gypsies
The Tutsis
In business, a target group of people can be seniors citizens, teens and/or toddlers, for example. The target groups are people an organization directs its advertising message to, and these people are likely to purchase the organization's product or service. Target groups help with an organization's mission, use of resources and long-term goals. It's a matter of survival for an organization to figure-out its target group/ market. If an organization pin-points the wrong target groups than it can't make a profit or fulfill its business mission.
Communism saw both groups as alienated from mainstream society and as potential targets to change the US political scene.
African Americans who stood up for themselves - Apex
Target The Corruptors - 1961 My Native Land 1-24 was released on: USA: 16 March 1962
The Times target socio-economic groups A and B, whereas The Sun targets groups C to E.
americans
Please see the related question.