I'm torn over this!
On the one hand my head tells me we have to pay the money back, but on the other hand I'm a political prostitute and will vote for whichever party allows me to keep more of my money, which historically has been the Tory party...and as I'm naturally right of center anyway, the Tory party has always been a natural fit for me.
We now have a Tory leader who is only notionally a Tory, and we'll be living in an era with the highest taxes for 70 years - the Tory party can no longer be described as the low tax party.
Merely as a 'by the way', isn't there an argument that people like me who have private pensions, private medical insurance, long term disability insurance and critical illness insurance, should pay a reduced level of NI?
As for the NHS, as soon as the tax rise was announced they started whining it was not enough...but let's face it, even if the NHS was promised 100% of the entire tax-take and a free Unicorn for every staff member, they'd still be whining that it wasn't enough.