Some forms of structural oppression exist through laws or other highly visible public policies (such as the more than 100 laws, regulations and ordinances prohibiting whites from normal practices in affirmative action, BEE, quotas, tenders, land acquisition).
This of course also manifests in “no-go” areas. It is so commonplace that a white dares not enter a ‘black area”, but traditional white urban areas and farms are under continious attack to scrap trespassing laws and to allow free entrance even on private property.
White South Africans protest against discrimination 7 Sep 2018 https://www.aljazeera.com/videos/2018/9/7/white-south-africans-protest-against-discrimination
South Africa Whites Only Oppression Is a Great Injustice August 12, 2017 https://southafricatoday.net/south-africa-news/south-africa-whites-only-oppression-is-a-great-injustice/
Covert oppression in South Africa July 11, 2017 https://southafricatoday.net/south-africa-news/covert-oppression-in-south-africa/