A referendum can't be more specific than leave or remain, just like in Scotland at the indi ref.

It is then up to the Politicians to deliver on the result.

Imagine the consternation in Scotland had they won in 2014. Then the Uk Govt insisted on a Withdrawal Agreement which gave us legal oversight and a veto over the final arrangement etc.

Anyway, there's a danger of going over old ground for about the 5th time so I'd best quit now