Hmm. That is a good point.
I think a person's culture has more influence though. Take the issue of animal rights. There are people who believe that hunting is absolutely wrong and consider it "murder." Then there are some people who hunt and don't see anything wrong with it.
I don't think it is a coincidence that the former opinion tends to be held more by urban dwellers who are insulated from country life. And that the latter opinion tends to be held by those who are located closer to the rural environment.
Same thing with perceptions about where food comes from. Growing up, I helped my aunt and uncle butcher chickens on their farm. I have no illusions about where the food on my table comes from. Yet, I'm continually taken aback by people who have no idea where their food comes from. Some of these people will take positions on whether it is wrong or right to harvest animals.
Likewise, people from rural areas can often be very naive about big city life. They can have a lot of misconceptions about it. For example, where I live, people perceive Minneapolis metropolitan area to be an extraordinarily dangerous place to be. All that crime! But I know people who live there and I will probably eventually move there myself. I've traveled there many times. It has never struck me as extraordinarily dangerous. "Keep your wits about you," perhaps, but not "Here there be dragons," dangerous.
I bet if those same people who have these perceptions would have grown up in the other place, they would no longer hold those views.
A person's experiences, the cultural soup they were raised in and current live in, the variety of stuff they read and think about (or don't read and think about), seems to me better predictors of political orientation.
But I have to admit, your argument that there could be hard-wired political tendencies for politics as there are for various aptitudes is a reasonable one.