Florida’s red wave is already wiping out school superintendents across the Sunshine State. Backed by Gov. Ron DeSantis and conservative activist groups, right-leaning candidates have gained control of many major district school boards and are purging prior leadership. “Parents woke up in the last few years,” a newly elected school board member backed by the conservative Moms for Liberty advocacy group told The Post. “They were exposed to the garbage that has gone on behind closed doors for so many years. That’s finished.” A trio of superintendents have been shown the campus door in GOP-leaning districts in November alone —...