No, this is not how currency gets or keeps its value. The work itself is what creates value, which is paid back in currency. If you pay taxes, you transfer some of that value you created to the state. The money would not become worthless if the state did not collect taxes. Money is a way to transfer value, not to create it and taxes are like any payment just that, a transfer of value.

Well, and also by removing currency from general use, raising value by decreasing availability.

Money existed before the government started using it.

The idea that taxes remove money form the economy and government spending prints new money is an abstraction created for macroeconomics to simplify its models. But it's a lossy abstraction, so don't go thinking this is exactly what happens on the real world.

But also bad if you have pay for things like food and shelter. Then you are just bartering which is less efficient than having actual currency. You can't buy or sell someone half a haircut.

To hide it. He is also on a podcast with Yugopnik and Hakim, both of which are tankies.

Basic mmt with a socialist touch.

Debt just means that the government decides to make something happen. It is neither inherently good or bad. It depends on the context. The biggest opponents are capitalist who want to stop good things from happening as this will reduce their profit. E. G. : more public housing would destroy the business case of landlords.