Okay, let's agree with the premise that voting for the Libertarian party will get more Democrats elected. However if you believe the first part of your statement to be true, which I assume you do or you wouldn't have said it, what's the difference if the GOP or the Democrats get elected? Stronger national defense? Granted the GOP has been running with that for years and I believe will continue to use that as a major plank in their platform. But if that's about it, what's the difference on the domestic front?
Granted I'm not a big L libertarian, you might consider me more of a Southern Constitutionalist
And, Libertarians will NOT ever get a candidate elected president, but IF, in some unimaginable way, they did, he would NOT be able to govern, nor get any of the stated LP positions passed.