Nothing. Like the Tea Party, they are single-issue dipshits with no administration skills or experience. The sheer boredom and mundanity of the everyday job of being on a school board will stifle them, and they'll leave voluntarily. School Boards are also committees staffed with locals who have VERY strong views on what is important and what needs to happen. Many of them have had the same members for decades. One or two lunatics are always elected to the school board, who quickly find themselves ostracized from any decision-making process. There's one on my local city council who votes No on everything, because he's anti-regulation. So the only thing he does at every single city council meeting is utter the word "No". You can imagine how effective that is. Finally, many of these people are running under false pretenses. Critical Race Theory is a COLLEGE-LEVEL ELECTIVE course, and is not taught in grade school. So they are running to fight something that literally doesn't exist.