It insists that how things work currently is the only way they can work, ignoring that most of America was built under a much more libertarian society.
America was s built under a much more
conservative society, at least going by what is now recognized as conservative ideology.
Libertarianism does overlap with a fair bit of American Conservatism when it comes to philosophy about government size and powers, but where it
clashes with conservatism is also very important.
Specifically, around sexual degeneracy. An enormous amount of what has torn down America's institutions and culture is the consequences of the sexual revolution, which is specifically and explicitly a major part of why libertarians aligned themselves with democrats more than republicans for so long, because they found, and for many libertarians
still find, common cause with the left on this matter.
You yourself are a partial example of this, with your sexual libertine attitudes.
It wasn't until the Obama administration that libertarians even
started tilting away from consistent political alliance with the left, in spite of their authoritarian government-empowering policies, and a fair number of libertarians still prioritize their cultural sexual agenda, over politic liberty agenda.