Well now, isn’t that special? Love the “a black colleague” bit dribbling out of the mouth of that blonde horror.
“To call very person who has that flag a racist” is perfectly logical dear. It’s what YOU are.
As for it symbolizing Southern Pride – here’s a symbol of German Pride
And here’s a “postmodern” rendition.
Cue Billie Holiday with a song about the “Gallant South”