Earlier quoted context omitted.
Without the racist background, how does one know which list does which? The new names actually describe what they do. The reason it may seem ridiculous is that racism is very, very deep in American culture. The country's culture goes back hundreds of years and is still slowly working on being less so. Here's an example: https://www.npr.org/sections/codeswitch/2014/05/11/310708342...
what's the racist background?
Rosstex posted a good explain below.