As a historian sometimes I consider the Herodotean argument that environmental factors which encourace cultural differentiation also encourage behaviour differentiation which leads different races to have different temperaments ie Eskimos are slow to anger and love kids, Greeks are tough cookies.
see you almost were okay until you said Herodotean which is pretty lmao because Herodotus among other things believed Indians could control giant ants.
basically blowin mind of thread here by restating what others have; socioeconomic differentiation is almost always the root cause of why you think or do anything like someone else in your racial group. there are few, if any, genetic predispositions shared between races, and those that exist are almost always aesthetic (ie, melanin levels in skin).