It's not falling apart. It's expressing its final form, which is an all encompassing world government with the duty of tracking the ownership of every molecule of matter on the planet, and of enforcing every contract without judgement on its contents or the conditions under which it was signed.

Libertarians are people who believe that markets are natural, like trees. Markets are not natural, they are arbitrary sets of rules that people agree to abide by in order to have the agreements they make within those rules enforced by whatever institution is dictating those rules. Markets are an endorsement by the powerful, where at the least the loss of that endorsement will get you ejected from the market, but at the most it could get you broke and imprisoned.

So the fact that they don't recognize what markets are, and think that they can be free (either as in speech or beer) forces them to make governments the ultimate market, but their desire for unlimited freedom and autonomy (or rather limited only by your property) forces them to deny governments the right to make rules about their own markets.

Instead, they revert to natural rights, natural freedoms, natural markets, social Darwinism, etc. Mysticism. That's why when you scratch a Libertarian for long enough, you eventually either find a blood & soil racist or an ex-Libertarian.