And I went to a very conservative school, and am typing from Florida. I know how things are here.
The principal wasn't politically left of the parents. She's an evangelical Christian whose previous job was at Christ Classical, which "integrates all subjects to develop a biblical worldview for every area of life" and follows a similar curriculum. At this school she'd been promoted into the role that she quit; it's 'advised by Hillsdale College, which has raised money by pushing back on what the institution describes as “leftist” academics teaching a “biased and distorted” view of U.S. history'.
Everybody knows exactly what they're doing here, and it has nothing to do with students seeing a statue's cock and balls, or parental consent, or much of anything at all. One or more parents didn't like the principal for <insert any reason, valid or stupid, here>, they found the first thing they could use to punt her, and they wrapped their hands around its length and girth as tight as they could and then swung it at her until she left.
/s
(If the USDA wants to complain, I'll sue on religious grounds)