As someone who's not a native, I've always found this to be one of the lamer complaints many locals have. Nothing personal your Trumpness, but consider this - the stadiums you listed ALL belong to teams that are constantly in the top-tier attendance-wise other than the Royals, and they've been in the World Series two straight years, so their attendance and revenues are way up as well. They don't necessarily need to whore themselves out for every last dollar to hope to increase payroll and cover expenses.
I completely understand the complaints about the lack of Marta access and other things that might make things more convenient for local fans to attend more often, but (in reality) that hasn't helped at The Ted, now has it? The statues outside the park have to be the iconic signature symbols since the club needs the income from the corporate mess. Unfortunately the Braves aren't in a position to forgo those profits to provide some things we'd all prefer to see instead of the Coke bottles and moo-cows because the lack of attendance has always prohibited that choice. The Braves are a "regional franchise" because they have to rely on fans who live well outside the Atlanta area to show up for games. Many of those fans live so far away that they have to make a trip "an event" - it's just not feasible for them to come out for one or two games without needing something to help distract their kids at times. There aren't that many of those kids who wouldn't drive their parents nuts if all they came to Atlanta for a weekend for was to spend 9 hours watching baseball.