They may be, but the food has to be grown somewhere by people, and those people will eventually be fed up with being left behind.

Then they will rebel, and discover the unholy power of modern drone based warfare. After which they'll be replaced with more technology and low paid laborers from other nations.

And as I come from a family of midwestern farmers, I'd say that your revolution fantasy is just that. They tend to embrace high technology pretty damned willingly. This is what is leading to the country side emptying out. We don't need 50% of the population to farm any longer. In another 40 years we may not need 60% of the population to sit around in offices typing out code. These are things both the rural and urban populations in nations need to work on finding solutions to rather than fighting each other.

The farmers will be doing just fine as long as they get good prices for their product.