Decent point @Lightkeeper. You've hit me between the eyes. I have spent so long being worried about Labour's rainbows and unicorns promises, and the betrayal of democracy that I have failed to think about what policies I would like to see, other than that I am not prepared to write any party a blank cheque.
So with that in mind, I'd like to see academic children educated with others of the same mind, and the more practical/technically minded taught well with useful essential knowledge that will serve them all their lives, including basic home economics and consumer finance, health and wellbeing and flexibility to switch between the two streams, with all children offered opportunities for art/culture and sport, in classes under 25. Special needs provision and support funded. Scant tolerance of disruptive behaviour.
I'd introduce a universal basic income, at the minimum taxable level, so eliminating the zero-tax category because everyone over 18 would get it. Child allowance per child born before it was restricted to two children per family, but to two children per mother born after. A disability allowance on top for those who are physically disabled or severely impaired by mental health problems.
I'd like to see the NHS dual-funded, by the taxpayer at source for emergency care and children, including dentistry. With a means-tested co-payment contribution for anything else, including GP visits, to be paid by anyone in employment paying more than the state pension, which would be the same as UBI. So well to do pensioners, with more than state pension would still be paying for their care, unless hit by the proverbial bus.
I'd keep tuition fees, but at a more modest level, and let their repayment act as a proxy for a graduate tax on higher earners, at approximately the current level. For practical reasons, I would encourage students to attend university near home, but encourage loan provision via banks for those wishing to study elsewhere, on commercial terms.
I would adopt Theresa May's (derided) plan or very similar for the provision of social care for the elderly, so if you own a property or business, your estate would be charged post-humously for the value of care received, with a residual amount (IIRC it was £100K) left to the family. The legator bought the property and received tax relief on it; why should the state fund your inheritance?
Above the £100K limit, inheritance tax would be levied at the standard rate of tax. Except agricultural properties and corporate assets, where I'd levy charges on the basis of a land value tax every time the ownership changed.
All second homes and homes bought via company/investment vehicles would be charged double council tax.
I would like to see business rates altered to a levy on turnover, with a minimum threshold per square metre.
Good heavens, I've gone so far, and now I can feel the wrath about to descend on me. Not to mention the law of unintended consequences, which I know you will call out. Please bear in mind that I am not the Chancellor of the Exchequer and have spent an hour trying to think this through, without civil servants to help, and no elves either!