指出文本的语法错误Racial politics has been a major issue in American society for centuries The topic of American racial politics has been a subject of interest and inquiry Scholars and researchers have extensi

指出语法错误: 在第六句中，“Through a metaphorical approach”应该是一个独立的子句，需要添加逗号来分隔它和前面的句子。正确写法为：In the novel, Through a metaphorical approach, the racial and political issues in the United States are objectively expressed, revealing the fragmented impact of racial issues on society.