The most popular strand in modern anti-racism is Critical Race Theory. This explicitly suggests several possible courses of action which would be likely to lead, in a worst-case scenario, to civil war between different ethnic groups living in the same country.
https://www.youtube.com/watch?v=eiWEc-0HXlg
Delgado, Richard; Stefancic, Jean (2017) Critical race theory : an introduction (Third ed.). New York.