Almost everything your brain decides is affected by things outside of it.
We are a mixture of chemical desires and social + cultural outputs. Free will is an illusion. Its been done. Philosophers did to to free will what they did to God and capitalism.
They think the only thing holding us back from a race war where we kill all the non-whites is our access to electricity.
I think it genuinely doesn’t even cross their minds that the vast majority of all the other people aren’t violent, racist monsters.