This sounds like some horrendous Taliban level shit but living in a federal system myself (Australia), k-12 education is primarily a state responsibility here as I believe it is in the US. I wouldn't want to see this happen in my own country but it wouldn't be the same as closing down the department of education in an unfederated country like New Zealand or most European nations where it would be disastrous.
Inconsistencies between states here (Australia) used to negatively impact students moving between states and entering tertiary education. Federal systems can be grossly inmeficient and full of duplication and barriers between states.
Unfortunately not having national standards is probably going to increase economic disadvantage in already disadvantaged red states which will only increase division in the US.