Why are so many US conservatives in this day and age still against racial mixing? They won't say it in public, but they are still against the mixing between Blacks and whites? Why?

Read also:

• What factors contributed to Taiwan's economic success compared to Mainland China, despite their close proximity?
• In what circumstances might a chaperone be appropriate for a medical examination?
• Why do programmers choose to write their own code instead of using code that is already available online?
• Why do many men like women's breasts?
• Why do trans people get so deeply offended when a stranger misgenders them, especially when it's a first encounter? I've been socially transitioned for 4 years and it just feels like a waste of energy to be so hurt by it.
• Brad Pitt and Tim Cook surprise fans at Apple Fifth Avenue ahead of ‘F1 The Movie’ release - 9to5Mac
• What specific economic and social impacts would result if all climate change policies and regulations were immediately repealed worldwide?
• Would you respect the US with a woman as president?
• What are the pros and cons of a prospective bride/groom not having any siblings?
• What do flat earthers think about Antarctica?
• Why do a lot of women have a crush on my boyfriend when they know he is in a relationship with me? I am starting to feel insecure too. What should I do?