You do realise that many international businesses are thinking...

You do realise that many international businesses are thinking about ditching UK and moving to EU, not the other way around hahaha.
Because UK becomes insignificant to them, without 400 million EU market!

I don't think the Brexit will pan out exactly the way you imagine. It's not gonna be that much difference in the end.

Either way: UK will have to play by the rules the Elephant in the room wants, eventually.
Be it with Brexit agreement or later on under pressure from EU markets.
That's how things work in the real world!