EU referendum, brexit and the aftermath

The 'cost' statistics from all sides of this argument (granted this comes over a lot more from one side than all of the others put together) just seem to be a big game of 'What can I get away with including and what can I justify leaving out with just the most tenuous of reasons to suit my own argument?'. Sadly I can't recall I have seen something that looks reasonably considered and we are how far down the line?

The latter figure is the shortfall between the tax and national insurance the 3.6 million migrants and their jobs deliver, and the £10,500 p.a. average cost of public services

Bullshit. EU immigrant are contributing more in taxes/NIC than the average UK population atm.

The other areas on "UK -may- have to pay out on Eurozone debt" sounds like a "needs more info"

But, assuming it -does- cost a billion a day it then has to be offset by the costs of leaving on whatever deal they assume.

Who are Global Britain? My fake news senses are tingling...

Edit: Yup, highly biased:
https://globalbritain.co.uk/history/

Can’t see any data. Clearly written from an angle. Clearly written fucking terribly - ‘This stab-in-the-back on UK voters’

I’ll stop being a filthy #elitist now.