“As Rutter (2002) noted, ‘Any dispassionate reading of the evidence leads to the inescapable conclusion that genetic factors play a substantial role in the origins of individual differences with respect to all psychological traits, both normal and abnormal’ (p. 2). Put concisely, all psychological traits are heritable.” http://local.psy.miami.edu/faculty/dmessinger/c_c/rsrcs/rdgs/temperament/bouchard.04.curdir.pdf "Almost forty years ago, evidence from large studies of adult twins and their relatives suggested that between 30-60% of the variance in social and political attitudes could be explained by genetic influences." https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038932/ "Though traveling under various labels (“predispositions,” “values,” “personality traits,” “moral foundations”) in a number of different literatures, a common thread in this research is that some deep-seated psychological construct or constructs, rooted in genetic as well as environmental influences, serve as a basis for shaping perceptions, preferences, and choices as we navigate our social and political worlds." https://faculty.ucmerced.edu/sites/default/files/mhibbing/files/funk_et_al._2013_0.pdf If you want more, feel free to ask I can provide you with some more reading. tldr; The heritability of various psychological traits and political views is about the same as the correlation between a parent and their child's height; 0.45.