Yes if they all count everyone, then they have to collude to discard my vote. The better system is what you described, plus a box that I insert my ballot in th

Yes if they all count everyone, then they have to collude to discard my vote. The better system is what you described, plus a box that I insert my ballot in that counts it. The electronic machines used in SF are basically the same as an additional random poll worker, with the added benefit that the machine's count can only be manipulated by physically inserting ballots into the machine.