There's literally zero platform coverage for rural issues. The hotbeds of liberal politics weren't NYC and Boston 50 years ago -- it was Iowa and Wisconsin. Subsidies today are mostly about stabilizing a few commodities.
Dairy is the best example, it's an industry that scales down just fine with a regulated market. That was thrown away and massive dairy producers have literally destroyed the supply side of the market. 90% of dairy operations in New York have shut down since 1980. I worked on a farm as a teenager in the 90s that has been in continuous operation since the Dutch colonial period in the 1600s. Almost 200 years of that was significant dairy operations. They probably had 50-100 cows in the 1970s, but that business was gone by 1990-1992. Today, the family boards horses to pay their taxes and work for the government.
Dairy is important because it supports a large ecosystem of business. Vet practices. Laborers. Dairy processing and cheese making. The remaining producers in New York are usually captive producers for vertically integrated businesses like convenience stores, co-ops or scaled operations in Western NY. All of that is dead, and that pattern repeats everywhere.
Even in big agriculture states like say Iowa, the "farmers" are mostly tenants and employees now. All of these Trumper idiots who are going bankrupt will have their land purchased by PE, foreign capital or other funds and will become workers.