This happens. Every political regime is making it's propaganda in schools. In my country we have seen it 40 years ago with communism which was teaching kids Karl Marx and which was delivering basic communist ideas as the best (and only possible). And now we see it with democracy. I was in school 15-20 years ago and I was taught, that democracy is the only possible way of doing things and whoever is against democracy is against freedom and is totalitarian. I was taught, that I should always be a good citizen, and I should always protect democracy no matter what. Nothing changes, same style of propaganda as communism. Only the regimes switch, but the public state schools will always make propaganda, no matter what regime are we in.