The less well educated a population is, the easier they are to control. They can only get shit jobs, can't afford college or healthcare and thus become fodder for the type of jobs billionaires create i.e. Amazon warehouses where they will work you until you die, ready to be replaced by the next generation of uneducated people in poor health.
Christian nationalism is trying and very near to succeeding in controlling what you are taught, what you are allowed to do with your bodies and what your laws are. The first people they seduced are your military just in case you get any ideas.