This section tries to clarify some points using a dialogue, in imitation of Plato. 

https://en.m.wikipedia.org/wiki/The_Republic_(Plato)

A lot of basic ideas that are 'common sense' to one person are silly to another, and vice versa. 

For example, a common issue in the news recently regards immigration. Should the U.S. favor white immigrants, as it historically has? There are two sides, and a simple dialogue that presents the two sides would be /

Person A / "The United States is a Western culture, and has refined that culture to the point that it is considered the leader of the west. Letting in people from other cultures dilutes our American culture, pollutes it with a foreign element". e.g. https://news.yahoo.com/racist-upenn-prof-amy-wax-164009627.html

Person B / "The United States government is certainly based on western culture, and its most powerful people are Western, but for all of human history, until the U.S. government imposed itself by force, North America has been a far Eastern culture. In fact the furthest east culture. There is little doubt that Eastern culture existed in North America many thousands of years before Western culture." e.g. https://www.sciencedaily.com/releases/2017/01/170116091428.htm

A / "That may be true, but today's fact is that the culture of the most powerful parts of U.S. society is Western, whether arts, sciences, tastes, whatever. The U.S. is a Western country and should try to maintain that, regardless what it may have been in the past."

B / "So you are saying that a conquered country, or group of nations, once forced to submit must never be able to challenge the legitimacy of its 'conquest'? Like the thieves' argument that stolen property becomes the legal possession of the thief after a certain amount of time has passed?" 

A / "Things have always been that way. It is the way governments have always tried to operate. Are you trying to portray the normal actions of a government as being criminal? At any rate, we are no longer trying to extinguish Eastern and Native cultures. We are allowing them to participate in the society that conquered them, so that those indigenous Eastern cultures that were not extinguished can assimilate and join us in making a more powerful large country. Native tribes used to have wars against one another. We are giving them a chance to join our magnificent blob and be part of one much more powerful country. We will allow the surviving tribes to keep their tribal clothing, their dances, whatever remains, but it seems they should acknowledge that they have been conquered and have already surrendered to us."

B / "How can you be so sure we have surrendered? Maybe once we have assembled some guns and some money, and have allies abroad we might slowly retreat from your blob." e.g. https://www.npr.org/sections/thetwo-way/2016/12/01/503979353/barrow-alaska-changes-its-name-back-to-its-original-utqiagvik

A / "Don't be foolish. Of course we will allow you to rename cities. We will tolerate a lot. As long as you agree that you are part of our powerful country. You must know though that there are things that we won't tolerate. If you have questions, ask your grandparents."

B / "These times are not those times. You could not get away today with the things you got away with 50 or 100 years ago."

A / "There is no reason for us to try and do those things again. You Natives have become largely a part of our country. Native Americans were given full U.S. citizenship under the Snyder Act in 1924. Natives have been given voting rights in all states. Do you believe New Mexico was wrong to give Native Americans in that state the right to vote in 1962?" e.g. https://www.loc.gov/teachers/classroommaterials/presentationsandactivities/presentations/elections/voting-rights-native-americans.html