By Andrew Mackinnon
Black citizens of the United States of America could be granted a strip of land of approximately half the width of California, being approximately 108 miles in width, along the entire length of the Mexican border, from the Pacific Ocean to the Gulf of Mexico, by taking land from the southern parts of the four states of California, Arizona, New Mexico and Texas along the entire length of the Mexican border, in order to form another state of the United States of America, being a 51st state of the United States of America.
en.wikipedia.org/wiki/California
en.wikipedia.org/wiki/New_Mexico
white-alliance.blog/united-states-of-america-ethnic-groups-1930-to-2020/
It would be up to black citizens of the United States of America (USA) to figure out what they want to call the 51st state of the USA that has been granted to black citizens.
White citizens and black citizens of the USA could be free to travel anywhere in the USA and could be free to live anywhere in the USA, including in the 51st state of the USA that has been granted to black citizens, assuming that white citizens would mostly prefer not to live in the 51st state of the USA that has been granted to black citizens and assuming that black citizens would mostly prefer not to live outside of the 51st state of the USA that has been granted to black citizens.
Other citizens of the USA, who are neither white citizens of the USA nor black citizens of the USA, could be free to travel anywhere in the USA and could be free to live anywhere in the USA, including in the 51st state of the USA that has been granted to black citizens.
White citizens and black citizens of the USA could work together to prevent any unauthorized entry of citizens of Mexico or citizens of any other country in the world into the USA via the Mexican border.
White citizens and black citizens of the USA could work together to deport all non-citizens of the USA, including all non-citizens of the USA who are citizens of Mexico.
White citizens and black citizens of the USA could work together to finish the excellent wall along the entire length of the Mexican border that the current President of the United States of America, Donald Trump, admirably commenced building.
All immigration of non-white people into the USA, including black people, could stop permanently.