If Libertarians want to do something profound, then they need to go get converts and not just be smug spoilers.
Europe is proof enough that handing the socialists victories does not end in a public epiphany to go in the opposite direction.
Leftists have been very successful being incremental and libertarians should keep that in mind. They should push to get more and more libertarian candidates, not take their ball and go home.
Libertarians need to stop spoiling in the generals and start working more in the primaries to get libertairan minded Dems and Repubs on the tickets..
Leftists are successful because government is a religion substitute for them.
Libertarians are the closest thing there is to dogged resistance to the leftists. They are the only real "counter-leftists" who are both persistent and consistent.