We need to stop focussing on the national debt as a bad thing. It is used to beat up governments when it is part of a much bigger picture.
I like Pratchetts boot theory of economics to explain it;
Take boots, for example. He earned thirty-eight dollars a month plus allowances. A really good pair of leather boots cost fifty dollars. But an affordable pair of boots, which were sort of OK for a season or two and then leaked like hell when the cardboard gave out, cost about ten dollars. Those were the kind of boots Vimes always bought, and wore until the soles were so thin that he could tell where he was in Ankh-Morpork on a foggy night by the feel of the cobbles.
But the thing was that good boots lasted for years and years. A man who could afford fifty dollars had a pair of boots that’d still be keeping his feet dry in ten years’ time, while the poor man who could only afford cheap boots would have spent a hundred dollars on boots in the same time and would still have wet feet.
Think of the NHS, Education etc as a pair of boots. The reason it is costing us so much is because it is inefficient, outdated, run down. Schools and hospitals are costing us too much to run because they are worn out. People are doing a bad job because they are worn out. We don’t replace things or improve things, we have spent decades just patching things up. A local council will spend more money over the years, patching and re-surfacing roads than they would just properly fixing things so they will last longer. They do this because of a lack of capital.
The extra money you spend plastering over the cracks, is way more than the interest you spend on borrowing money to fix things properly. Borrowing to invest in the nation properly will save us money in the future. But we never get to that because if a government does that, they are hammered for it. So, we just keep seeing borrowing going up and up with no plan of how we are going fix the problems.
If the government doesn’t borrow money, they will have to raise taxes or cut services. What do you want the government to do?