Why does the future always have to be liberal?

[Rookie Yinzer]

It's not, the south was far more reactionary about slavery in 1860 than it was in 1800.

Yes, circumstances such as the Northwest ordinance and isolation of slavery in southern states, or Germany losing WW1 can hinder the process... but most societies progress in periods of prosperity.

The US was more conservative in the 80s 90s and 00s than 30s 40s 50s

For whom? My great grandparents were sharecroppers in the 1930s ffs.

African-Americans and other oppressed groups don’t exist in his world view.