The origins of sexual racism can be explained by looking at its history, especially in the US, where the abolition of slavery and the Reconstruction Era had significant impacts on interracial mixing.
Attitudes towards interracial relationships, and indeed marriage, have increased in positivity in the last 50 years.
It is the discrimination between potential sexual or romantic partners on the basis of perceived racial identity.
The Southerners who were used to being dominant were now no longer legally allowed to run their farms using slavery.
The Ku Klux Klan then formed in 1867, which led to violence and terrorism targeting the black population.
There was a rise in lynch mob violence where many black men were accused of rape.
After the abolition of slavery in 1865, the white citizens of America showed an increasing fear of racial mixture.
The remnants of the racial divide became stronger post-slavery as the concept of whiteness developed.
Uncontrollable lust threatened the purity of the nation, which increased white anxiety about interracial sex.