Permabanned
What about the road network, the armed forces, the health service?
Or the prisons and courts that then deal with the suspects arrested by the police?
There are a huge number of things that require a collective payment to make possible, most of which you as an individual will hopefully never need the use of, but the ones you do need would cost you a fortune to pay privately for.
road is council, bit of normal tax for major networks... there is also road tax
health service is national insurance...
You do realise there are more successful countries with lower taxes... right?
30-50% is madness...