@SEC agent - you do understand your George Washington quote offers a libertarian endorsement don't you? It's saying ordinary people should be involved in defending a free government.
Its more than that, it is your
duty as a citizen to not only pay taxes to your government, but also to serve and defend it.
I agree. But I think you're misunderstanding what that means.
Libertarians are not against paying taxes. They are however against being forced to pay unconstitutional taxes. Bitcoin can be taxed, just as an economy that runs on gold can.
Defending a free government doesn't mean you must enlist in the military, because a government might only be free in appearance.
Rather, truly defending a free government means being involved politically and if necessary militarily to ensure your government remains free. The arbiter of that is the U.S. Constitution. Wouldn't you agree?