The counterargument to the point you're making would be that taxes are essentially "closing the loop" between private and public services.
Either the state taxes and provides public services, or the state taxes less and private services are provided.
I think the bigger point is about the state's role as a consumer- and lender- of last resort.
Through its ability to deficit spend (enabled by its supposed future ability to tax) or its ability to print currency (through its central bank), there are functions the only states have access to. Which become incredibly valuable when everyone else is economically terrified.
Either the state taxes and provides public services, or the state taxes less and private services are provided.
I think the bigger point is about the state's role as a consumer- and lender- of last resort.
Through its ability to deficit spend (enabled by its supposed future ability to tax) or its ability to print currency (through its central bank), there are functions the only states have access to. Which become incredibly valuable when everyone else is economically terrified.