Imagine if you will that the UK signed up to play for a cricket team for the next 10 years. This involved long term contributions for maintenance of the cricket pitch, club house etc etc. After a couple of years everyone else in the cricket team decides they don't like cricket anymore and to play football instead. The UK says woah no way, we are leaving, we signed up for cricket. The new football team says oh but you still got to pay. The UK just laughs and tells the football team to fuck off and goes to play cricket elsewhere. Got it?