1. We were / are one of the most prosperous countries in the world despite EU membership
2. The EU was used as a method to introduce us to other world countries as a way to trade with them
3. I’m not sure giving back our own political system total control over us is such a good idea.
4. Freedom to move, live and work anywhere in the EU (if that’s the sort of thing you like, of course).
5. A report by the Centre for Economics and Business Research, released in October 2015, suggested 3.1 million British jobs were linked to the UK’s exports to the EU.
6. The right to free emergency healthcare when in another EU country.
7 a combined terrorism fighting force. In an age where police resources and the military are being depleted year on year, I believe this is a major loss to us.
8 The majority of CBI member agree that the EU benefited industry
http://www.cbi.org.uk/insight-and-analysis/our-global-future/factsheets/factsheet-2-benefits-of-eu-membership-outweigh-costs/
I can cite some more if you like but you’ll probably just label them ‘project fear’ in one of your usual uncomprehending rants.