If such a brain interface allowed X evil actor to actually control people, you wouldn't have arguments, you'd have a direct takeover (or several different evil

If such a brain interface allowed X evil actor to actually control people, you wouldn't have arguments, you'd have a direct takeover (or several different evil actors dueling). But if this interface was simply like a drug or some similar effect, I doubt there's be enough of a combination of interests to get people on board.