Law for trade can now be micromanaged and pass very quickly which would give the UK an advantage over a a large entity such as the EU, this is what going to help us.
People are looking far too short term, this decision isn't about today it's about how the country stands in 10 / 20 years time.
The European market has been in decline for years with only a slight increase seen recently but for how long who knows. The real opportunities now lie in Eastern markets such as China and India, I've seen this in my line of work where premium products which were once designed for western markets are being made to suit Eastern tastes.
We will be in a far stronger position to deal with these countries outside the EU