A NON-fascist RW takeover of authoritarian nature is a lot more likely than full-out fascism, which is all the way over the RW edge and ultimately requires the wealthy and business to serve the state along with everyone else. Fascist states also invest a lot of state power and wealth in controlling how people think and what they do, whereas your typical plutocrats really don't care and would prefer that wealth come to them.
It's hard to imagine any NON-fascist far-right ideology that would see virtue in investing in 12 (or more) years of public education for everyone. All are strongly hierarchical, and people in the lower levels of hierarchical societies certainly don't need (or deserve) the knowledge people who run things from the upper do. However, unlike fascism, many conservative ideologies wouldn't support actually taking steps to limit who can have privately paid education.
And some hard-cores conservatives merely strongly oppose mandatory public funding, but expect people to continue to be free to think and do what they want with their lives. Very different from fascism.
So while fascism is extremist even among extremist Republicans, making public education system no longer mandatory, and dismantling the institutions that provide it to all, could be sold to MAGA voters, and of course any RW government that had power long enough would take at least major steps to elimination. We KNOW that last because ours has been moving our nation toward it for decades now.