One thing you will learn in life is that history repeats itself. circumstances of past negotiations give cause to ending rebate and that's the reason why. keeping tabs on past events will further increase the efficiency of all governments. that's why history is of the essence in this day in age.
Yes, the circumstances of past negotiations do not give cause to ending rebate to the British, because the British benefit from the European Union, even if they are not officially a part of it. The United Kingdom should look at their contributions to the EU as contributions to their own defense. They are related, and their contributions were not inappropriate, but they do not deserve compensation.