So the argument that we wouldn’t get a vote is not true.
As was the argument that we don't have sovereignty. Because other nations get a vote in the rules we have to follow. But Brexit supporter fell for it. And a yes or screw it for every other member vote. Is clearly less whatever the people voting thought sovereignty was, then being a member able to propose rules. So no the idea we don't get a vote. Is no more false then any other idea that Brexit supporters wanted.
Sorry, that is not intended to be dismissive. But we have to accept at this point. Any arrangement must deal with the perceived idealism. EFTA was rejected for that very reason. The hard Brexiters did not see it as as leaving the EU. Just remaining with less of a say.
I agree with migration. But again, it's not really answering my question. But skirting it. We left the EU because a % of voters wanted to stop migration. Being a member of EFTA in no way allows that. And the whole argument for Brexit can be put down to blaming the EU for shit our government did. So, saying our gov want migration. Is not a reason why EFTA is a better option then staying in the EU was. But just an attempt to ignore the arguments used to leave.
Just to make things clear from my point of view. Free trade means borderless trade. That is the point of the EU agreement. Any system that allows us to have laws dramatically different to the laws of the area we trade. Will require some form of customs checks. To ensure we are supplying goods that meet their laws, not ours. That is simply the way ant trade deal has to work.
If we are having to follow the laws to have an open border (goods as even if we could gain an agreement without migration it really does not change the argument). Then what is the advantage of being out of the EU if we are in the EFTA.
As I said, I am biased because I don't personally see any advantage being out of the EU. So for the sake of argument, ill except any evidence of increased sovereignty. But not as a grab all term with no definition. It needs to have some clear element of control of our own laws that we do not have as an EU member.