I haven't read through the posts but the answer is simple, there ideas aren't popular. Good or bad, that's reality. If their ideas were popular they would win elections. They aren't so they don't. You can make all the excuses you want but this is really the crux of the matter. This doesn't mean there isn't a very loyal, very vocal, very enthusiastic, group of people who are libertarians. However, they are very small minority. There may be ideas within Libertarianism that have broad public support, but those beliefs aren't unique to Libertarianism.
It's kind of like the idea of cutting the budget and smaller gov't. Lots of people profess to favor those things, but what most really mean is take money from every other congressional district but you take a dime from my district and I'll come at you like a spider monkey. Even a guy like Ron Paul understood this, as he fought like he was fighting the Japanese at Iwo Jima to make sure as many federal dollars went to his district as he could possibly get.
It's kind of like the idea of cutting the budget and smaller gov't. Lots of people profess to favor those things, but what most really mean is take money from every other congressional district but you take a dime from my district and I'll come at you like a spider monkey. Even a guy like Ron Paul understood this, as he fought like he was fighting the Japanese at Iwo Jima to make sure as many federal dollars went to his district as he could possibly get.