[https://www.noahpinion.blog/p/i-owe-the-libertarians-an-apology]

My basic criticisms of libertarianism were:

1. Libertarians’ ideological opposition to public goods provision and state capacity not only makes us poorer, but it also makes us less free in the long run, because poorer societies are less able to resist foreign conquerors. For example, it’s hard to imagine a libertarian government winning World War 2.
2. By treating all of society as an interaction between a government and the individuals it governs, libertarians tend to ignore the threats to liberty from non-governmental institutions (“local bullies”), and from foreign governments. This led some libertarians to oppose the Civil Rights Act, and to underestimate the threats from illiberal powers like China. And these omissions led to some unsavory people grafting themselves and their oppressive ideas onto the libertarian movement.
3. Libertarians underrate the importance of non-market mechanisms, which are sometimes superior to markets when transaction costs are high. If friendship, sex, and the right to breathe air were allocated by markets, society would be worse.
4. Libertarians’ focus on deontological (principles-based) notions of freedom often contradicts humanity’s moral sentiments. For example, some libertarians argue that people should be able to sell themselves into slavery; the proper response to this is “Eww.”