

The global fertility rate (the number of child born per woman) has been declining since 1963 or so, and is almost at replacement level, which is usually considered 2.1 or so.
Population is still going up since global life expectancy is still rising, but the expectation is that population will peak in 50 years or so.
Farmers tend to be right wing, and often exist as Republican counties in Democratic states. So probably also these farmers.