No, it doesn't. It comes from bombing countries such as Libya, Iraq and Syria. None of which has anything to do with 'the EU', but all the more with NATO. So leave NATO already.
IIRC the Syrian civil war was not caused by bombing Syria. The Saudis and other meddlers encouraged
the revolt when they should have encouraged (bribed with aid) the regime to quietly reform.
Personally I'd like to see a good argument for the UK leaving the EU, as so far I haven't seen a single one that holds up or is even close to being accurate. But as to your question, which you apparently missed already having been answered, the UK has been profiting from the EU market for decades.
This profiteering is frequently stated, but I have never seen any rigorous evidence.
Not so much as France or Germany, but then again France and Germany have been members longer. There really isn't any economic argument for leaving the EU. Which leaves such vagaries as 'loss of sovereignty'. The UK isn't Greek Cyprus, and Greek Cyprus hasn't even seen such 'loss of sovereignty'. What is called 'loss of sovereignty' is actually the normal procedure when joining a federation of independent nations such as the EU is. Common decisions (even common decisions in Parliament) require compromises. Whcih si quite something else than 'loss of sovereignty'. and if you're concerned about any 'loss of sovereignty' you shouldn't have joined in the first place But you are free to leave at any time. Considering the vigorous debate this matter has actually engendered, it remains to be seen if such a leave will actually benefit Britain.
Your perspective seem to be that the UK is already in the EU. That is the status quo and it is up to leavers to justify leaving.
I am not going to argue with the validity of that perspective particularly for those younger than myself as it is not unreasonable.
However I, and others, have quite different perspectives.
Firstly I was born 60 years ago a citizen of a largely independent country (the UK) and unlike the French etc, I was never given
the opportunity to vote in a referendum as to whether to join the EU. The nearest thing we had to a referendum was the election
for the European Parliament which if you may remember was in terms of the UK vote won by the UKIP. I do not believe that
my decision to vote should be prejudiced by the fact that both John Major and Tony Blair chose to proceed forwards with the
EU without a UK referendum because they knew very well that they would have lost a referendum.
Secondly I regard the current position as an untenable half way house i.e. in so much as the UK has its
own currency, military; it is in reality only half in the EU anyway.
Opinions differ widely on that, and probably for good reason, as to a large extent it's simply a leap into the dark.
To many of us staying in the EU is equally a leap in the dark.
I.e. The EU Court ruled in June 2015 that 5% VAT on energy efficiency for the over 60s in the UK is illegal.
Apart from the fact that this conflicts with the setting of targets to move to a low carbon economy
(which Tony Blair signed up to because he hoped to be EU President in itself damaged the UK steel industry)
these decisions undermine the ability of the UK government to move the UK economy forward.
IIRC in the USA, individual states may separately have or not have their own sales tax.
A benefit of leaving the EU is that we can decided such matters for ourselves.