i think you're overlooking that charities and charitable giving would continue if you did provide more state funding for this and that cause. you could put 5% more spending on GDP, with the increases in taxes to fund, and there would still be causes that people want to contribute towards.
I see that people are not aware that most charity funding is from taxes, there are substantial grants and payments to various charities from various government departments. i dont recall how much but its over half of charity sector funding and over £10bn. the bigger, more high profile the...