There is one line in your post of 03.52 Iains which should concern us all and that is:

"One in 12 companies is planning to shift its UK investments to other markets, mostly elsewhere within the EU."

If this were to come to fruition no doubt many jobs will be lost in the UK, in addition to those companies already mentioned (Banking, Finance etc) who are already relocating some of their operations outside the UK

Brexiteers seem to be quite complacent about this outcome ........