The US also has significant agriculture subsidies. Most developed countries do.
In dairy, for example, if prices get "too low", the US directly buys excess supply to increase the price, makes direct payments to dairy farmers, and subsidizes feed (corn/soybeans) and farmers' insurance.
Most historical trade agreements between the US and friendly nations tolerated minor interventions and subsidies on both sides.
Trump is taking a completely different tact. His goal is not free trade or sustainable relationships. He recognizes the US is the stronger party in most of these negotiations, and wants to use that to extract concessions that explicitly favor the US, even if it strains and damages the economies of historical allies.
In dairy, for example, if prices get "too low", the US directly buys excess supply to increase the price, makes direct payments to dairy farmers, and subsidizes feed (corn/soybeans) and farmers' insurance.
Most historical trade agreements between the US and friendly nations tolerated minor interventions and subsidies on both sides.
Trump is taking a completely different tact. His goal is not free trade or sustainable relationships. He recognizes the US is the stronger party in most of these negotiations, and wants to use that to extract concessions that explicitly favor the US, even if it strains and damages the economies of historical allies.