Hazlitt doesn't talk about Capitalism vs Socialism in his book 'Economics in One Lesson', but rather takes apart particular economic interventions by the government in a 'wertfreiheit' (value-free) manner, and analyzes their causes and consequences.
Lot of ammo in there for Bitcoiners to use when advocating against fiat money, since the demand for most interventions are downstream of the distortionary effects of fiat policies.
Entrenched concentration of wealth caused by the cantillon effect results in people finding progressive income tax and other taxes on the wealthy more palatable as a policy.
Small and Medium businesses face some of the biggest challenges from the fiat system as the big corpos, as a function of being closer to the money spigot, outcompete them despite losing money in the process. Despite being profitable and efficient, they see those who simply have access to cheaper credit lines wreck their operations. Thus, they demand support in the form of cheap credit, price fixing and production subsidies.
Without money that appreciates in value, or the prices of goods and services never going down, there will be ever lower standards of living for savers and workers. Add to this the fact that small and medium businesses simply can't fill the gap in demand for employment, since they are competing with the fiat cronies. Electoral demand for minimum wage laws, employment programs, socialization of industries to generate employment, affirmative action for the economically backward, establishment or expansion of welfare programs, direct cash transfers will all follow.
As savings decline and productivity takes a hit, governments start becoming uncomfortable with the increase in imports from more productive economies. This impacts the margins of existing domestic producers. Hence, they start demanding restrictions in trade, which means trade restrictioms, trade bans and import tariffs. Export subsidies would also be introduced.
It's a slow creep of government into the economy, with the support of the populace, and they would barely realize or recognize what's actually going on. People in the market would actually welcome these interventions because they think it is in their best interests. The government would think that they are indeed acting in the best interests of the people they claim to serve.
The result is a tool of wealth extraction by the power elite from market entrepreneurs and capital formers, with the latter willingly enabling this without realising what they are consenting to.
It is a form of slavery in which the slave doesn't know that he is being enslaved. Even if he does, he thinks it is a good thing. He thinks the alternative of being free would be a bad thing.
That's one of the most insidious consequences of fiat money.