Genius. Your talents are wasted on here. Sod the Laffer curve, sod the fact that the very people you intend to hit are the most mobile in arranging their tax affairs, sod the fact that you intend to wipe out the luxury goods market in this country overnight.
So how do you plan to implement this tax so that it is equitable, doesn't drive wealth creators from this shore and there are no loopholes for creative accountants to exploit? Hopefully you've got something a little more concrete than "it just works" which was, I recall, your less than robust defence of Keynesian economics (which clearly didn't work, doesn't work and will never work and whose fundamental precept doesn't involve pissing away tax receipts on non-capital public expenditure and then having record borrowing during boom times).
In answer to your question:
So ... have I got this right? The country got into this mess, thanks to unprecedented levels of public debt. And we are solving the problem by borrowing more money?
The simple is no. Once again on macroeconomics, you don't appear to know your arse from elbow but I'm glad that you've finally come round to seeing that Keynesian economics is a fraud.
Where to begin?
We're that much in debt because of a global financial crisis caused by rampant, irrresponsible, unchecked financial chicanery. Labour are partly culpable because of their cowardice in regulating the City but it would have happened anyway.
Do you honestly think the Govt has no agenda except shrinking the deficit? Right-wingers believe in a small state and low taxes. So wherever they can shift the financial burden on to individuals and away from central coffers, they will do. In a way there's nothing wrong with that - if that's what you believe. But at least have the courage to admit that it's what you believe.
I will say for the third time in this thread, that the state spent more on benefits last year, than it raised in taxes. If the state was to afford everything else, it would have to raise taxes so high, no one would have any spending money left. And anyone with any sense would move abroad to a lower-taxed state.
A smaller state and low taxes is exactly what would benefit the nation (in normal times). Think of the low-tax states and how generally wealthy they are, in leaving their people more able to choose what to spend their money on (and by default, their indirect taxes), such as Monaco, Hong Kong, Switzerland. Before the NHS and NI, the Great British Public had to rely on the private benevolence of their employers or local parishes to see them through the rough times. Grandma's remedies for illness was their only medicine. Since the NHS and NI, the Great British Public thinks it is entitled to have everything on a plate. Someone, somewhere, has to pay for all of it. We've been living off the national credit card for too long.