Why are we subsidizing foreign farmers?

You read right! Money that the US governemt is borrowing from China is going into the pockets of cotton farmers in Brazil. Is that crazy? Its bad enough that they tamper with the free market and fund Americas producers, but to fund foreign competition is bad bad BAD.
I favor a free market system with one requirement, that farmers not be forced to sell below production costs. We zap companies like ome depot for short selling, lets require the buyers to ensure the farmer gets his money back, but lets end the subsidy system. paying farmers to grow cops, not grow crops, plow under grown crops, and buying excess crops is malarky, It has created nothing but problems, and has gone on so long no one know how to operate a free market system anymore.