(As for their quid pro quo - three free GP visits a year for everyone! - they've lumbered it with a pile of NeoLiberal rationing and a de facto universal ID card. Which is just intrusive, pointless waste. FFS, just fund health...)
It is clear that the state needs money to pay for the things we want it to do. It is also clear that we need to arrest inequality and the political power of the ultra-rich, by taking money away from the wealthy and using it for public purposes. Labour's bullshit half-measure doesn't really do any of these things. So I won't be voting for them. Instead, I'll be voting for a party which promises an actual wealth tax, which whacks the rich and raises enough revenue to actually fix things. I encourage everyone on the left, who wants proper public services and hates billionaires, to do the same. Labour's half-measure is OK as a transitional step towards a real wealth tax. But its not enough - and looking at their institutional culture of complying-in-advance with the demands of the rich, nothing from them ever will be.