These threats, ladies & gentlemen, are what you call wolf tickets. Every time the KKK tries to hold a rally in a city with a large Black population (Philadelphia, DC, Detroit), those racists end up getting run out of town.
Atlanta will be no different.
On a side note, the APD will use the Klan rally as an easy excuse to lock up Black counter-protesters. Don't fall for the okey-doke, people. Be safe out there.