Your statement is a non-sequitur.  I do tout free choice and mutual transactions, the very definition of Capitalism.  I do pay for the services I seek.  I do NOT pay taxes to jurisdictions who do NOT have the authority to tax me and where I do not vote.  Federal law specifically protects service members from becoming subjects of such jurisdictions as part of their military service.  California has no authority to tax a federal installation nor products delivered to that installation.  The federal government chooses to pay "impact costs" to local governments impacted by a federal installation, but that is a choice federal politicians made to help local communities.  The federal government is in no way liable for local taxes.
I once had a city try to force their local sales taxes onto products purchased for use at Rocky Flats, a federal installation.  They lost.