Hi, OP -
Not to sound trite, but if ever anyone was looking at the glass half empty!
I pay higher rate and DH pays highest rate, and while we don’t exactly enjoy it, at the moment we feel that if the money were being used properly we would be fine with an increase - say, to rebuild the NHS, clean up our waterways, improve local services, etc
Gently, do you enjoy your job? There is a striking lack of reference to job satisfaction in your posts. Instead it sounds like you are working primarily for the dosh. For many that is a necessity, but generally at the higher income levels you have more choice.
If you don’t particularly want a full time job, of course you should cut back. But own your choice.
How did you become so focussed on the idea that a nice house in London and private school were key components of life satisfaction? What are the issues with either improving your current house, if it is in catchment areas for good schools, or moving to a better, less expensive house in a good catchment area further out - with a commute that hundreds of thousands of others routinely manage?
Again by all means do what you like. But don’t blame Labour for policies they haven’t even announced, that may be necessary to keep the UK from even greater decline. TBH it sounds like you’re disillusioned because for whatever reason you aren’t on a family income of £300K+, which is about the minimum it would take to get out of the ‘grimy areas’ into a nice terrace in London and put your DC in private schools.
Comparison is indeed the thief of joy