Answer:
White Supremacists
Step-by-step explanation:
The White Supremacists believed that those with white skin were higher in terms of power and social rankings. This is mostly because once the slaves were free the White supremacists had a hard time adjusting to the new lifestyle. Instead of welcoming and embracing this change, they decided to use violence against the African Americans.
Many White Supremacists came together and created the Ku Klux Klan, also known as the KKK. This group, as many know, used only violence to loudly profess their views.
Luckily, in today's world most Americans don't care about skin color. Sadly, there are still White Supremacists. However, you should never treat somebody a specific way because of their skin color.
Hope this helped! :)