Why will lower taxes result in run down public services? Right now we're borrowing more or less £2 for every £1 we spend so your taxes aren't really funding too much and at least 10% of your tax bill goes towards paying interest on the national debt.
We could give people a massive tax break which puts money in their pockets to spend, the economy then grows and we just borrow the rest against that growth like we always have to keep public spending as it is.
The problem today is not how much tax we pay but what the government does with it. We're at the most heavily taxed point in history yet we have perhaps the worst public service provision in decades and apparently we're all skint and the economy is tanking as well. Clearly taxes are not the answer.
This is perhaps why I think the windfall tax thing is just funny. We think taxes go straight to frontline NHS care but actually the majority is probably used to pay for computer systems that don't work or buses with no wheels and that kind of thing it seems.