What you’re doing is conflating the fact that the current government has funnelled billions upon billions of taxpayers’ money into their chums’ pockets one way or another, with the fact that taxation actually funds everything the state provides. Healthcare, education, roads, defence, and everything else. Just because the current government can’t be fiscally responsible for a jumble sale doesn’t itself prove your theory in the slightest.
Until 2010 our standard of living was probably the highest it’s ever been, hospital waiting lists were at record lows, and education standards at their highest. Since then, the taxes we pay have been squandered, sure, but that doesn’t mean the concept of taxation is wrong, just its implementation.