England's leaving the European Union was a statement against big government. Smaller governments better serve their people. In a large government like the European Union, people's needs are not well met. Governments that cover a smaller geographical area are more effect and better able to represent the political views of the people.
From the voting results it looks like people wanted to leave the EU. People were tired of the European Union's policies. They didn't like that they were telling Britain to let migrants in or making a number of other types of policies that did't favor Britain completely. its probably good that they split from the union.
The United Kingdom should not have left the European Union. Leaving the EU will costs the country's economy; the Pound Sterling has lost value which hurts the purchasing power of its citizens. The economy of the U.K. is going to suffer because of decreased trade with Europe. In short, the British would have been better off if they had voted to stay in the EU.
In a globalised world, every country must work closer with others if the want to flourish economically. A Little Englander desire for isolation will undermine the UK, plus the PM might have won an opt-out to “ever closer union” come the referendum. 44 per cent of Britain’s exports go to other EU countries. Putting up barriers with the countries that Britain trades with most would be counterproductive.