Those treaties are now normal German law that can be changed by majority but are binding on every government and include hard sanctions in case you want to get rid of them. If the treaty states that every government of the member countries has to pay a certain percentage of the agricultural budget of the European Community all countries have to pay no matter how many billions have been wasted. The European Community is in favour of a strong protectionism for agricultural products. The European Community guarantees a fixed price for all agricultural products produced in Europe and lifts the low prices of products from outside of Europe. Even those member countries of the European Community who are fighting this kind of socialistic protectionism internationally have to finance this gigantic European protectionism themselves because of older treaties.
Nobody seems to know a way out.
The European bureaucrats coming from the different countries according to a certain key are not interested in any changes because they live on the necessity of thousands of officials for this protectionism. It is a growing elite of those so-called European officials who plan the future of Germany who never had to face an election, who are not responsible to a government but only to other European officials and who are far from any real control. Even the 'European parliament' does not have the power to stop them. But the main problem is not the situation itself, but that the citizens of most member countries got used to it and are not interested in the ethical question behind this uncontrolled law making. For them law is nothing holy but just the decision of an ever changing majority in the parties and the parliaments, who in turn try to satisfy as many pressure groups as possible.