It seems like pretty much everything the EU does vindicates Britain's decision to leave. Their ridiculous system of subsidies and regulations will only continue to make things worse. Just watch what happens if they decide supermarkets need to be further regulated.
With Britain leaving the European Union, the British will cease to contribute to the budgets of the institutions. This includes the CAP, the EU's Common Agricultural Policy, which allocates funding in the form of individual payments to producers. Over the last months, farmers on the continent have been very concerned about their subsidies which put the European Union's Commission, which proposes legislation, in a bit of an awkward position. Uneasy about the prospect of losing the popular support of farmers, the EU seeks to find new winning issues.
Source: The EU Declares War on Supermarkets - Foundation for Economic Education