Japanese Americans were put in camps in some places because it was thought they might try to contact Japan and betray America.
According to Erikson, the main function of play is to allow children to learn about the world around them and try new social roles. The children are able to understand the cultural roles through play and to integrate or take in socially accepted cultural norms into their personalities. He considered children who play to be socially competent.
That statement is true.
Internalized subordination is a situation when an oppressed group subconsciously accepted their status as 'an inferior group'.
An oppressed group tend to enter this state if the efforts that they made to relieve the oppression keep failing without showing any development for a long period of time.