I think the big assumption/fallacy is that electing a libertarian president or few congress folk will tear the fragile system asunder. When we just want to win a few battles to turn the tide against ever increasing size of government, domestic surveillance, police statism, taxes, and people who want to silence us and others like the regressive left.
If you were a true libertarian, you would call out right wingers as well for trying to restrict voting rights, tightening immigration laws, marijuana, abortion rights, LGBT rights, and many others.
Police statism and military are favored by far more by right wingers btw. One of right wingers most important values are patriotism and national security after all.
Libertarians tend to most strongly oppose whoever happens to be in power at the moment.
Back in 2004, libertarians spent most of their time attacking Bush's foreign policy, the PATRIOT act, etc and were nowhere near as active opposing tax/regulatory increases from the Democrats. This isn't because libertarians like those things or prefer the Democrats, its because they were the less influential party at the time.
Similar deal to why a lot of libertarians spend more time attacking Obama/Hillary than the Republicans/Trump. Republicans aren't in a position to implement their worse policies at the moment, and unlike Obama, Hillary doesn't even pretend to be an anti-war or civil libertarianish candidate.
