Free speech is an interesting ideal but historically there's always been "acceptable speech" and "discouraged speech", where discouragement comes on a spectrum

Free speech is an interesting ideal but historically there's always been "acceptable speech" and "discouraged speech", where discouragement comes on a spectrum between "outright banned and prison" to "people don't invite you to parties". In hunter-gatherer days if you had extremely antisocial ideology your tribe probably just left you in the desert and you died.