The warnings from sci-fi are a good hint about what might go wrong with technology. Surveillance causes dehumanizing oppression (take your pick but everyone knows 1984), false accusations cause injustice (minority report among others), human augmentation and dna modification and create prejudice, division and revolutions (gataca and star trek), ai displaces humans and leads to mass unemployment and despondency (pick one)

In Butler's case, the terms "race", "slavery", "machine" stand out as begged questions.

Butler offers Luddite ranting to assuage his own confusion and fear.

Prefer Herbert's simpler, more self-reflective, nuanced warning to not desecrate the divine mystery of mind.