I understood your analogy. I just recognize it as crap. Loren didn't drive his car. Your capital gains helped you keep up with inflation. The gains weren't fictional. Those were real dollars that you have in your pocket that you otherwise wouldn't.
Inflation is just another form of tax. The government "deserves" to benefit from inflation for the same reason it deserves to benefit from any other tax. Because the tax will be used to provide services to the people. And yes, sometimes assets are exposed to more than one single tax. This isn't a novel concept.