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 real evidence is there to believe in legends such as the story of Atlandida or the lost continent of Lemuria?
• Can we trust the Bible when Constantine and the First Council of Nicaea took out many books of the Bible and altered existing translation by removing things?
• Can we state Alia Bhatt as the most versatile actress in Bollywood now?
• Can you explain the difference between “mi piace” and “mi piacciono” in Italian?
• Do women lack the mental strength to succeed at STEM? There seems to be few women at STEM and more women leave STEM after a time of working at it. How can it be just sexism if women aren't banned from entering?
• What is something you have to share?
• Why do Democrats look like snowflakes and Republicans look like Vikings?
• Is it socially acceptable for individuals to wear clothing typically associated with the opposite gender? What are some reasons for or against this practice?
• Why did the UK Supreme Court rule that transgender women are not women?
• What are the best self-care practices to improve mental health?
• Is it possible for humans to determine their past life as an animal? Is there a scientific method to prove this?
• What is the definite integral of x^x from 0 to 2?
• How do you like to be pegged?