I partially agree with the OP.
Frankly, the UK is in dire straits. The big issues being:
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one that most countries are facing, that is most acute in developed countries - birthrates in perpetual decline, meaning an exponential decrease in working age people and increase in (traditional) retirement age ones. It is not an ideological judgment but a matter of fact that our pension system - by far the largest component of welfare - is completely unsustainable in its current form.
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one relatively unique to the UK - we have a uniquely high number of people out of work on health grounds (again, adding to welfare spend, and reducing the pool of net contributors
Short term, we need to bite the bullet and slash welfare spending. That goes against every ideological instinct of mine, but the country is veering towards collapse quicker than most. Starmer gets that, but (1) doesn't have the grip on his party, and (2) is faced with extreme public backlash - as will be any leader who takes this particular bull by the horns.
So, some of the OP's "policies" make a lot of short term sense.
Longer term though - and while acknowledging that no country, however left or right, has found the answer - I profoundly doubt that policies that would increase wealth inequality (e.g. minimum wage cuts) are conducive to a recovery in birth rates. Few want large families anymore and, many that do, cannot afford them. Absent a radical solution, we need to remove barriers and incentivize birth rate stabilization. The latter is a tough nut to crack, but we certainly shouldnt be adding to the economic barriers.
A revision to fossil fuel reliance sounds attractive but would take years to yield results and is short termism pure and simple.
Reform UK? Morons demanding unicorns. Immigration is not a viable long term solution to the demographic crisis but - like it or not - is the duct tape solution. Net zero Immigration is probably the single dumbest policy imaginable at the current moment.
The Greens? Look, I would be delighted if someone can put together a coherent vision for a more equitable society that is capable of sustaining itself. (Antisemitism aside...) it all sounds so very lovely, but they have no demonstrated a modicum of economic credibility, at a time where we need it in spades.
Labour (or at least, Starmer) seem to have something the extremes lack - a baseline understanding of the challenges we face and some sense of realism, although long term solutions seem elusive to them too. Unfortunately, politics has always prioritized the short term over the long term, and even means testing the winter fuel allowance caused such backlash that they u-turned in order to (try to...) remain electable.
Bitter pills need to be swallowed, and whoever administers them is almost certainly condemning themselves to election defeat - unless they can clearly articulate the problems and sell the solutions. Starmer - regrettably - can't even sell incremental steps to his own "supermajority" (and yes, that's partially down to traditional media, partially down to social media - but its an area where he is especially weak).
Anyway, as bad as tying are now, they look set to get worse come the next general election, especially if the Russia/crypto-backed slimeball slithers into number 10, so enjoy the soon-to-be good old days and cross your fingers that AI might somehow save us.