Well, yes, rationalizing individual behaviour that in aggregate leads to authoritarianism, totalitarianism, genocide, war, ... is "just human". Just as building power structures that add sufficient indirection that allows individuals to use those rationalizations is "just human". And tribalism ... yes, definitely "just human".
But is any of that really a justification for anything? Yes, things are more nuanced, some things are worse than others, sure, but that doesn't really make "but he is my tribe, and he benefited from it" a good justification, does it?
But is any of that really a justification for anything? Yes, things are more nuanced, some things are worse than others, sure, but that doesn't really make "but he is my tribe, and he benefited from it" a good justification, does it?