I remember a BBC interview where I was asked if there were any regrets about leaving the EU. I got a bit of backlash about the response.
Essentially, being a member of the EU could only work if we harmonised everything: currency, tax, welfare, healthcare, laws, military; essentially a federal position.
Any half-baked arrangement Is doomed to fail. Not having a central tax policy opens the box to MTIC fraud and huge tax avoidance like we see with Eire tech companies. A federal United States of Europe could possibly work, but so long as the machinery of the EU was not democratic and the ordinary voter had little say in the direction of their own destiny then this was not ever possible.
As an independent nation with the history we have and the relationships with our commonwealth we should have been and still been able to make a huge success of Brexit.
We should be able to elect our own lawmakers, who enact our wishes. Anything else is against the principles of democracy.