I do not consider the potential gains available to us as a result of Brexit to be worth the risk of the potential losses
That makes the assumption that leave vote based solely on economic gains. Far from it I think.
Impossible to know why each of the 17.4 million chose to vote leave. However, if asked to list in order what the most common reasons were it would be:
Immigration
Tabloids blamed everything on immigration in the run up to the referendum. I would not say the entire UK is racist, but would say it’s a larger % of the population than some think
National Pride
Rule Britannia. Germany were defeated in WWI and WWII. Leaving the EU (which is lead by Germany) is another two fingers to Germany Argentina were defeated in 1982.
EU commissioners not elected
When did anyone get the opportunity to vote for Barnier?
UK gives more money to EU than it gets back
UK has trade deficit with EU
Correct
UK has trade surplus with non EU
Correct. So let’s expand trade in non EU. To do that UK must leave the EU