This is really easy!
Stop all conflict between parties, allow the £zillionaires to have two years to clear this mess, this will not cause that much of a dent in their wealth. After the two years the slate is clean, then, this is when the £zillionaires get their say, never borrow again and use what you have. The national tax funds per tax year is nearing one £trillion, therefore it needs a mixed panel? of folks to keep a check on government spending, this panel would be far better than the hideous House of Lords twats.
Simple, especially with the likes of the following…
