Government farm programs for the past several decades have been driven by concerns for production rather than people. The underlying assumption has been that the public would benefit most by focusing on improving the efficiency of farming, ultimately bringing down the cost of food and fiber to consumers. This focus on efficiency is the root cause of the trend toward larger, more specialized, farming operations.
Small farms are a significant part of American agriculture.
While a focus on production may have been a legitimate orientation in the past, there is no longer any significant benefit to be gained from increasing the productive efficiency of agriculture. The rest goes for farm inputs and marketing costs. Even if farming were perfectly efficient, if farming cost nothing, consumers would only save a dime of each dollar spent for food. Further improvements in the efficiency of farming simply cannot make food much cheaper. Consumers no longer benefit from making farms bigger.