"the pound is already re-stabilizing and didn't fall that far to start with!"
a) no it isn't
b) 10% isn't a big fall????
It's fallen to the lowest level since 1985. It's the 3rd largest currency fall ever, of any currency. It's twice the fall that happened on 'black wednesday' when we crashed out of the ERM - which caused a whopping recession and soaring interest rates.
The FTSE only stabilised after the Bank of England offered an extra £250 billion - yes, with a b - in liquidity to banks, who were amongst the hardest hit.
And that was ONE day of post referendum trading.
HSBC have said they will move at least 1000 jobs to the EU if the leave the single market. The rescue of Port Talbot - 11,000 jobs - is under threat as potential investors are backing out now due to Brexit. Tech, cars, financial services, and all other sorts companies that rely on exports to the EU are all looking at if they'll be better off in Ireland or Scotland (assuming it leaves the UK) to stay inside the EU single market.
The bonfire of the UK economy has literally only just started. Petrol is going up next week due to the sterling crash, electricity & gas prices will follow, and food prices will be going up soon - we import 40% of it.