Leftist policy survives off "gibs me free stuff", a concept that is neither feasible nor encourages outside urban shitholes. The very landscape encourages a greater degree of self-sufficiency which ultimately shifts mindsets away from the "I'm entitled to the fruits of everyone elses labour, and they should forcibly share with me" mentality that leftism is often predicated upon. Environment matters A LOT for the formation of ideologies, including how the environment ultimately forces or doesn't force certain actions. The more independent you need to be, the less likely you are to demand some entity force others to provide for you.

Ideologies require hospitable environments. There's a reason the rural is more right-wing and the urban is left-wing. Because those environments literally encourage the mentalities that are the cornerstone of the ideologies.