Can you make an argument for believing that? Using psychological terms in a strictly behavioural fashion for groups/countries seems to me to not just be an ana

Can you make an argument for believing that? Using psychological terms in a strictly behavioural fashion for groups/countries seems to me to not just be an analogy but capturing the essence of what is observable. Many of the concepts are similar e.g. identity, cooperation, aggression, lying, betrayal, self-preservation, fear etc. You can defend this further and claim that even when examining an individual, you will see conflicting identities and traits that resembles the conflict in a group rather than a constant, simple, single identity. The underlying truth appears to not be not that a group does not have psychological behaviours its that a single simple human identity doesn't really exist and is always an emergent property of some collection of heterogeneous smaller parts identities/modes/processes etc.