Bullying is something that is as old as schools itself. It happens at every school that I know of including Kickapoo, Hillcrest, Parkview, Glendale, Ozark, Nixa, Willard, and small surrounding schools. Raising kids is tough but kids will need to adapt to varying social situations and learn to deal with people.
I'm a proponent of private schools and would rather my kids learn to deal with pretentious assholes than the issues that come with low-income households that use public schools as baby sitters with no desire for upward mobility. On top of that the college preparedness is much greater. If you can get a Greenwood education for little to no cost, I would take it.