Here's Atlanta's party enrollment split, by the way:
But let's break this down simply for you
In Green Bay - Wisconsin is essentially a purple state. Those that are able to go to and will go to Packers games will go regardless essentially, but those that are more likely to bray will be those of left leaning - the younger generation of the area, not to mention the overall aromoshphere. Green Bay, by the voting logs is as purple as they come.
The right will not not protest this.
Arthur blank is a big time Democrat, as well. He loves this as a chance to rebuke Trump. He's a piece of ****, as well, if ya read about him. In Atlanta's demographic it makes sense for him to pander to his groups as the fanbase is on the left; young, dumb, disposable income.
But blank did it mosrly as a Democrat supporter.
Now run along. Google that. You'll learn from me a lot