While some of their platform is endemic to the downward spiral, they are hardly the "all" of the problem. Liberalism/socialism is the main culprit. Libertarians have their pie-in-the-sky outlook regarding a few issues, but they are far from the cause of our degeneration - they have little say and no power. It's mostly a result of the 1960's liberal establishment that turned it's back on the values of our Founding Fathers' and created the "if it feels good" generation.
From reading the Libertarian Party platform, they are much closer to the original intent of the FF's than the Republican RINOs of today, certain libertarian positions notwithstanding. Other than the moral relativism that the RINO's are showing nowadays, the Libertarians at least respect and promote the Constitution of the US...something the RINOs seem to ignore daily.
My comment was against the moral-liberalism which the LP champions, not their wacky party or their impotent platform.