Quality of life = wealth / cost of living
If we optimised our lives for quality of life instead of wealth, people would be happier. The way to achieve this is with much reduced immigration and low house prices. Leaving the EU is a step in the right direction. The longer the government continue increasing our population to make the nation wealthier but more overcrowded, the more our quality of life will decline. Our relative position in economic terms doesn't improve quality of life, provided we don't let wealthy foreigners buy up our country. Service industry jobs also tend not to provide the same job satisfaction of manufacturing/creative jobs once did.
The majority of British people had a better quality of life before we joined the EU.