Why KKK have fire cross?

The Ku Klux Klan (KKK) uses a burning cross as a symbol of its ideology, representing both a perverse form of intimidation and a perverted expression of their beliefs in racial superiority and white nationalism. The act of burning a cross is intended to evoke fear in marginalized communities, particularly African Americans, and to signal the Klan's presence and power. Historically, the cross burning has roots in the group's origins in the post-Civil War South, where it was used as a method of terror and as a symbol of their commitment to white supremacy.