Re: Looking the wrong way
Exactly. The US isn't in the EU or anything like it and yet millions of jobs from manufacturing to coding to accounting / legal work to radiology have been outsourced to lower cost countries like Mexico, India and China.
The main difference is that the people of the US have (in theory) the ability to vote out the people who make treaties or laws that allow / encourage such things to change them. The success of Trump's campaign shows that this isn't so easy....I guess you can argue that his success IS people trying to affect such change but even if he's elected as President he doesn't have the power to unilaterally abrogate existing treaties like NAFTA, or change the law to make outsourcing more difficult. The republicans in congress will still be firmly on the side of free trade, and many democrats as well (at best half of democrats would side with him, based on Bernie Sanders' results, but they might take a page from the republican playbook with Obama and decide to unify and be obstructionist against Trump and hope it makes him a one term president)
In contrast, the UK has traded their sovereignty in some matters to the EU so the only way to make such changes is to leave the EU entirely. Instead of free movement into the UK (for coders, effectively as if the US had unlimited H1-B visas) so the work is done and taxes are paid within the UK, now those jobs will be outsourced. Those city companies won't hire junior coders for more money to work in the UK, they'll have their junior coders working in India and only have the senior level people based in the UK. Future startups might happen in Berlin or Barcelona and leave the UK out entirely. Instead of UK resident junior coders having their jobs priced down, they'll be eliminated completely - and the tax revenue the UK was collecting will go away.
As stated, this is a problem with globalization, especially with regard to high speed worldwide communication making it almost as easy to work with someone in India as with someone the next floor up.
The big problem with the EU is the alliance between rich and poor countries, with everyone trying to maintain their own budgets and standards of living. The poor countries only joined to become richer, and much of that happens due to the free trade and free movement. The US is a bit like that with the states, where the richest like California and New York are net contributors to the federal government and others like Mississippi are getting more money back than they put in, but these things move in cycles. When the confederate states tried to leave they were the richest ones and they supported the north. Maybe in 150 years Mississippi will again be among the richest states, who can tell?