There are a dozen opposing arguments.
It's true that the frustration of Brexit by a sequence of remainers from Miller to the Lords to Yvette cooper has cost uncertainty but blame the right people for that. Remoaners are what cost uncertainty not the principle of Brexit.
Any entrepreneur will tell you kicking in the routine job and spending to create a future costs disruption and money. So all expect some turmoil. But that's what is needed to build the future.
Also blame a completely intransigent EU That refuses to negotiate on trade Is the problem. Theintransigence of EU, the dysfunction of the euro , the inability of 27 to agree on anything meaningful, and an ideology that has self harmed growth is the reason we must leave.
So now calculate the GDP loss caused by being in EU, since EU growth is way below many other leading economies. That is huge.
Whenever you see the exchange rate argument cited as "bad" you can be certain the article you read is remainer b@ll@x. In reality It makes our exports more co petitive and also the economics of manufacture at home. It's why our economy is doing well despite project fear. We need to dissuade importers, or those who spend money abroad. The fact is the reason for German export success is because of a Euro down priced by averaging with the basket case economies.
And so on.
The independent is a remoaners rag, that just sees what it wants to see.