The American producer pays taxes and fees to build and maintain the infrastructure that allows the US to have a large market.
What taxes and fees?
“I don’t what you’re referring to when you say US farmers pay taxes and fees.”
Farmers generate income by selling the crops they grow. If they make a profit on those sales the law requires they pay federal and state taxes on the income. In addition they pay property taxes on the land they grow crops on. In some states they pay property taxes on farm equipment and buildings. The gasoline and diesel fuel they consume in their farm equipment is taxed and those taxes are passed along to them in the price of fuel. Fuel taxes pay for the roads systems used to transport farm products from farm to market. Foreign farmers pay nothing toward the building and maintenance of the roads that carry their products from US ports to market. In fact the American taxpayer pays for those ports as well as the dredging and maintenance of waterways used by ships bringing foreign agricultural products and manufactured goods to the U.S. market.
Many farmers participate in the federal crop insurance program. In addition to insurance premiums, there are fees for participation. The farming practices of farmers participating in the federal crop insurance program are more heavily regulated by the USDA than other farmers.
The Agriculture Marketing Service of the USDA assesses farmers fees for voluntary grading, inspection, certification, auditing and laboratory services for a variety of agricultural commodities including meat and poultry, fruits and vegetables, eggs, dairy products, and cotton and tobacco.
Complying with EPA regulations is a significant cost to farm operations. The EPA regulates land use, storm water runoff, pesticide and chemical use, air emissions, waste disposal, storage facilities on farms, water quality, and other farming activities. Permits must be secured for some activities.
Compliance with federal and state government regulations is a significant cost American farmers bear that foreign farmers exporting to the U.S. do not bear.