The average cow in Europe receives more subsidies than the entire per capita income of most poor countries. There is no way they can compete.
"In the long term we simply cannot afford" to grow sugar from sugar beet when sugar cane has a much higher yield.
As for subsidizing cows... Long-life (UHT) milk is nasty, and pasteurized milk only lasts 3 or 4 days before spoiling. Dairy farmers more than 3 or 4 days away by boat from Europe should not be affected by the subsidies, except if subsidized UHT milk from Europe floods the local milk market in a poor country, which would be solved by allowing the poor countries to erect protectionistic barriers... guaranteed to evoke a violent reaction from police is to challenge their right to "define the situation." --- David Graeber citing Marc Cooper