[1] https://www.ons.gov.uk/economy/grossdomesticproductgdp/times...
[2] https://tradingeconomics.com/united-kingdom/gdp-per-capita
> However, trade with the EU was declining as a proportion of total trade even before Brexit
Yes, it has slightly declined, probably because of Brexit. The point is that it is one thing to say that we are "free" to do as we please, but the reality is not so simple if that means taking a massive hit on 41% of our exports! This is the whole Brexit story.