Big and valid question. You'll need to revisit the previous debate and arguments as to the pros and cons - I think they've been mentioned once or twice before, so I won't recap! (Other than encouraging folk to read the excellent article I previously flagged).
Btw small section = 52%, most of whom don't buy fancy bike gear or boutique basses, but have had to fork out Β£350 per household** each year for the past 48 years for the privelege of EEC membership which was originally voted for (and subsequent EU membership which was not). They decided the cons outweighed the pros. For the other 48% their view was the opposite.
Time is going to tell who got it right.
**on an approximate inflation adjusted basis, and taking account of EU rebates.