Benefits sold before Brexit referendum- sometimes still referred to by some but with no due consideration of what net overall benefit has actually been achieved. Thats because there are no easy answers to demonstrate any net overall benefits
Brexit resulted in :
1) UK Supreme Court sovereignty i.e. the final arbiter. True, but in what way has that benefited the country- in what way has there been any overall net overall benefit over the past 10 years? International law still exists.
2) The UK no longer makes a gross annual financial contribution of around £9 billion annually. However its lost around £6- 7 million in direct payments form the EU, e.g. agricultural subsidies, regional development grants, social/community funds etc. So on paper a £2-3 million gain however UK government now needs to replicate and pay those subsidies of agriculture, regional development etc misses out. so a £3-5 million overall loss and no overall net benefit in 10 years Plus thats apart from the UK is still paying the EU divorce costs of Brexit.
3) End of free movement of people within the EU- in what way has the UK benefited from this specifically? In what wa does the UK have better control of its borders? What has it lost in return? There has been no overall net benefit in 10 years.
4) Ability to make independent free Trade policies with none EU countries across the world- loss much, much, much more trade than we have gained- 10-15% loss. There has absolutely been no overall net benefit in 10 years
5) Fisheries Control to what end or benefit? Uk fisherman feel ver let down and adversely affected by Brexit there has been no overall net benefit to the fishing industry or the price of fish for consumers in the past 10 years
6) Regulatory divergence with EU- yes in theory the UK now has freedom to set our own regulations. But if we still wish to trade with EU we have to meet EU regulations. China wishing to trade with EU is willing to match EU regulations but will not likely wish to match different UK regulations for such a small amount of trade thus there has been no overall benefit over past 10 years
The benefits proposed before the referendum paid no heed to the broader context or trade offs. The perceived benefits relate to institutional and legislative controls achieved but have to be balanced against the significant non tariff trade lost with the EU, increased customs and regulatory friction for exports and no positive/or mixed outcomes on total net migration.
I still maintained in context and consideration of trade offs, there are no overall net benefits to the UK as a result of Brexit.