The heritability of conservatism is higher among more politically-informed individuals:

The population-wide heritability of sociopolitical conservatism is 57%. This falls to 29% among low information individuals (bottom 50% of the population), and rises to 74% among high information individuals (top 20%).

Presumably, the effect is similar for Leftism but I haven't seen any data on that as of yet. Either way, I think we can safely conclude that the more you know about politics, the more genetically-defined your views become.

This data implies that NPCism is real and ideological hegemony is vital to win in a "democratic" society. 71% of the political views of 50% of the population are defined by non-genetic factors, which includes mass propaganda, "education," etc.

Source: Genes, Ideology, and Sophistication (2021)