I agree, ideological diversity is important for the same reason genetic diversity is important: the results of protracted inbreeding are almost always catastrop

I agree, ideological diversity is important for the same reason genetic diversity is important: the results of protracted inbreeding are almost always catastrophic. The price of tolerating a lot of woo-woo and other nonsense buys us a society where we don't end up forcing people to recant heliocentric astronomy.