Our trade with Europe is falling ( Every year since 1999 ONS) today, the EU economy is showing little growth and certainly not better than the UK if not even a bit less ( Again depending who to believe and what numbers you look at) today, while within the EU the PIG countries as well as France and Italy are all but bankrupt
Of far more importance is to look at the changes both on stated aims and application of common sense, the EU is pushing towards a full federal state where as an example the British army will become a part of an EU army (Article 42 ) and the Euro will become compulsory.
There is the question of if the EU is even stable, there are major political shifts to the right in almost every member state, Austria & Hungary have closed their borders, Poland have refused point blank to take any migrants no matter what the EU dictates, yet not only do the migrants keep coming but a further planed EU expansion adds 77 million Turks to the mix from oct 2016 ( Visa free travel as part of the deal that gave Turkey 3 billion to tighten up border control).
These are NOT in the main skilled workers adding to productivity, but economic migrants where even a minimum wage is a huge leap up in living standard, so how will adding these kind of numbers no matter how spread out around Europe ( Difficult because the ethnic groups themselves are forming ghettos leading to social unrest in those area`s, as well as member states refusing to take the numbers ) do anything except drag down the living standards of the native populations without friction.
We are voting for far more than a few meaningless figures of a dubious nature, self determination in an ever changing world where the elected government put the British interest first, rather than ruled by a committee of people all with a different agenda, none of which will be the UKs best interest.