Reread my comments, I don't know how you're still confused about this. They are manufacturing a fictional scenario that does not significantly change the power imbalance of an authoritarian state, today or in their hypothetical example.

Today and in the Nazi era, there were functional social controls that served the same purpose and achieved, very clearly, dangerous results. No mind reading was necessary.

Yep, that is what every collaborator tells themselves to justify their actions. “Oh, it’s not like I made any difference, they were already going to kill all those people.”