No, it's been left in place because it's utterly impossible to reset the narrative without being labelled a "Far Left" lunatic, vilified the way Corbyn was, for not much more than espousing a few reasonably mundane policies like taking certain services back into public ownership. The sort of thing that is commonplace in a lot of countries who haven't yet sold anything not nailed down for a quick injection of cash, to hell with the long-term consequences.
Thatcher sorted nothing, she just pushed the bills further down the road, and we've continued to do that through successive governments regardless of Tory or Labour. The problem is, someday those bills come due, and when that day arrives while you are trying to deal with the aftereffects of a pandemic that you were wholly unprepared for, in part due to your own fiscal intransigence and short-termism, and also against the backdrop of a global CoL crisis, you are rather up shit creek.
Have you not noticed that over the past 14 years, and despite swingeing cuts to spending, national debt has trebled, government borrowing is through the roof, and STILL the economy is absolutely flat-lining, wages are stagnant, and costs are STILL rising. Our national credit rating has tanked, because we simply aren't the "safe bet" for lending we used to be.
This is what Thatcher got the UK, a few more decades of living it up on money we simply didn't have, at the price of leaving the consequences to be dealt with by people who weren't even alive when she was elected. This country is absolutely fucked, completely and utterly, without an enormous change of approach in respect to how it fundamentally spends its money and goes about things, but it won't happen because of this idiotic ingrained idea in public heads that you can demand low taxes and quality public service, and there is somehow no contradiction there, or consequences for pandering to that.
Funnily enough, the only people this is actually working out for is the already mega-wealthy, who not only use and abuse their wealth and power to ensure that nothing upsets the apple cart, but will simply fuck off elsewhere when the wheels fall off completely. But most voters in the UK seem to not only be unbothered by this, but enthusiastically participate presumably because they are still buying into the complete myth of "trickle down" economics. When is some of that wealth going to actually start trickling down then? It's been 45 years.