I bet that, if you saw a world where all people were truly "held responsible for their actions" [...], you'd recoil in horror and take that back.

Why? In this world the laws of nature already hold people responsible for people's actions, just not necessarily their own actions.

(and treated as agents, of course - a cardinal sin from my perspective)

From my perspective it is a cardinal sin not to, and given the results of capitalism vs. socialism I would argue I have a better case. Remember whether you model them as agents or not, people respond to incentives. If you refuse to treat them as agents, the incentives you give them are very likely to be perverse.

Also, I couldn't help but notice that you're treating both Aurini and myself as agents especially in this thread where you're trying to get me to repudiate Aurini's statements.