Ian is always talking about peaceful civil disobedience, and the foundations of the libertarian philosophy reject initiating force.
However isn't government a de facto initiator of force, and as such, do we not have the right to defend ourselves against its intrusion?
Morally yes, but practically you're just going to end up getting yourself killed and propagate the idea that people against the government must be dangerous or violent.
No one (well 99% of people) ever sees the government as a gang with guns, so if they come to arrest you and you start firing shots, you're going to look like an illegitimate psychopath.
Now if you happened to have some sort of giant robot that allowed you to take on an entire governments forces, I'd be all for you defending yourself, if there was actually a possibility of you succeeding, but since the government have millions of peoples money and obedience, its really not going to happen.
How to fight a bad idea with a good idea? Practicality.
Being free makes you rich more than being a slave, or even being a slave owner (in the long run). Since governments are now parasitic slave owners, and not the lord master type, their size is inherently linked to the wealth of the populace, since wealth gains by military expansion are a thing of the past, and since the wealth of the populace is linked to the size of the government, the larger a government gets, the more money it needs to run itself, and the less money people will be able to make through regulation and wealth redistribution.
Couple this with the short sightedness of modern democracies (i.e. only plan for the next 4-8 years), you get a whole host of problems like national debt and currency devaluation, so it is practically impossible for any government to consistently grow and stay large for any significant amount of time.
Get rich, move to the freest place possible, rinse, wash, repeat.
There is no magic fix or grandiose movement that can fix this thing in one fell swoop, just do the best to make your own life better, and do whatever it is you think is likely to make you more free, although if this involves huge changes in short periods of time you probably aren't being realistic.