We always had indoctrination instead of education, that's what caused the homogeneity/"common zeitgeist". The polarisation happening now is because more people

We always had indoctrination instead of education, that's what caused the homogeneity/"common zeitgeist". The polarisation happening now is because more people than ever before are breaking free from that indoctrination, and realising that the whole of society is actually structured around allowing a few sociopaths in business and politics to farm as much of the common people's labour and efforts as they can bear.