That may have been the case, but it was all on the never-never. I suppose people have forgotten the huge debt the country was in due to excessive borrowing. I know things have got even worse since then, a lot of which is the result of the pandemic, furlough, etc. Remember the note Liam Burne, chief secretary to the Treasury under Gordon Brown, left for his successor ? "I'm afraid there is no money!" Also, Gordon Brown sold most of our gold reserves for a pittance! People seem to forget that it's exactly these reasons that drove the UK to austerity measures. It was either that or even more borrowing.
Goodness, so much nonsense to unpick here.
Firstly.
If it hadn't been for Brown and his Chancellor, Darling, rescuing the UK banks by instructing the Bank of England to create the money to buy bonds and so put £billions into bank reserves, a good many of the UK population would have found their bank accounts empty because the banks didn't have enough in their reserves to cover the deposits held with them.
This action was approved of world wide as avoiding that calamity. Also, they gave a guarantee that is still in force, that if a bank failed any customers' deposits with that bank up to the value of £85,000 would be restored to them by the government.
Secondly.
Gold reserves are irrelevant. Our currency isn't backed by gold reserves; it hasn't been since the early 1970s when the 'gold standard' was abandoned internationally. Selling them made no difference to anything.
Thirdly.
As has been pointed out, over and over and over again, Liam Byrne's note was a JOKE. It was a joke with a quite long tradition, former chancellors or treasury ministers have done much the same in the past. The UK cannot run out of money because it creates its own currency.
Fourthly.
Government 'borrowing' is the government provision of a safe savings facility for institutions and individuals. It is absolutely safe because the government will always pay the interest on you principle, or repay your principle on demand. That is why pension funds hold so much government 'debt'. It is guaranteed its return. If the government didn't provide this facility the funds would have to make far more risky investments.
If the government were to suddenly repay all its 'debt' there would be so much money returned to the economy that hyperinflation would be absolutely guaranteed. Not a good situation to be in...
Do you have a NS&I savings account, or Premium bonds? They are part of 'government borrowing'. Would you want the government to return the money in your savings account to you, or the money you invested in Premium bonds?
The more pertinent question about government borrowing would be 'What has the government spent it on'? Because the state of the UK at the moment indicates clearly that they haven't been spending it on our public services...
OTOH, the money the government created to cover the pandemic seems to have created several more millionaires and billionaires. Is that where it went? Into the pockets of their friends and donors? 