Can someone write a short response to the following?

Many modern westerns, say from the 70s to the present, have focused on a number of very different topics from their older ancestors. These include changing the image and role of minority groups such as African Americans, women, Chinese, and Native Americans in the west. Discuss these different western narratives and the very different cultural values that we have traditionally been taught about the history of the west. Consider both Silverado and Tombstone where the issues of racism, African American cowboys and settlers, anti-Chinese leagues, and women moving west on their own if necessary.