I don't see the connection to my comment. Could you enlighten me, please?
(Your wording, even if unintentionally, seemed to suggest that the statement applies mainly to the way other people won't be able to actually force arbitrary terminal values on you (even when they convince you that they have). I think the remaining case, where you do that to yourself, is particularly important, as it's not a well-known idea that this too should be guarded against.)
Many people see themselves in various groups (member of the population of their home country, or their social network), and feel justified in caring more about the well-being of people in this group than about that of others. They will argue with reciprocity: "Those people pay taxes in our country, they are entitled to more support from 'us' than others!" My question is: Is this inconsistent with some rationality axioms that seem obvious? What often-adopted or reasonable axioms are there that make this inconsistent?