Answer:
The people of the area had pre-existing Socialist ideas.
Explanation:
The Socialist Party of Oklahoma was centered in the former Indian Territory because its leaders considered that its socialist ideas, which included (and still include today) concepts such as collective ownership of land, centralized planning of the economy, equality absolute between individuals, etc., were similar to the concepts of property that were established in the laws of the Native Americans. In this way, by establishing their centers in the native territories, the leaders of the Oklahoma Socialist Party believed that there they would have high rates of support, which would allow them little by little to grow in national politics.
The film was controversial even before its release and has remained so ever since; it has been called "the most controversial film ever made in the United States Lincoln is portrayed positively, unusual for a narrative that promotes the Lost Cause ideology. The film portrays African Americans (many of whom are played by white actors in blackface) as unintelligent and sexually aggressive toward white women. The film presents the Ku Klux Klan as a heroic force necessary to preserve American values and a white supremacist social order so it ended in many people seeing this as a vary racist film
The person in this poster is representing Nazism. Nazism is a set of political beliefs associated with the Nazi Party of Germany. You can see on the poster a swastika, and swastika's are an emblem of the Nazi Party of Germany.