Austerity is a con
The Tory austerity narrative is a simple and oft repeated one. It doesn't matter that "we've got to cut our way to growth" is nonsensical from a macroeconomic perspective, it's been repeated so often now that millions of people accept it as fact.
Some people (myself included) have maintained all along that it was always a simple con designed to give the Tories an excuse to continue their agenda of transferring ever more wealth to the tiny super-rich minority under the guise of bringing the national debt under control.
There is bountiful evidence that the austerity narrative is a misleading one, especially the myriad of counter-factual Tory slogans used to support it. They claimed that "we're all in this together" while handing the UK's income millionaires an average £100,000 per year tax cut and trying to defend 200%+ bankers's bonuses from new EU rules. They claimed they were "making work pay" whilst overseeing the longest sustained decline in average earnings since records began, and slashing in-work social security; and they claimed over and again that "Labour bankrupted Britain" when it was George Osborne that lost the UK's AAA credit ratings for the first time since the 1970s.