I think the mindset of those people who make such arguments are those who want to delegate individual responsibilities that involve such risks to other parties. They might not understand the risk involved when such parties get big enough to dominate and decide what to do and how to do it.

Usually, we commonly agree by coming to consensus on what to do and not to. But here the consensus, sometimes, can get hijacked by the third parties which lot of people don't understand how it happens (read historical events). 2008 banks bailouts is a good example to begin with.

As Satoshi mentioned, in the OG Bitcoin paper, that cryptocurrencies will be attractive to Libertarians. That's a fair assumption as one would start to notice a lot of activities involved in being part of cryptocurrency, atleast currently, requires lot of individual responsibilities, especially maintaining the wallet's credentials. Not to say that they can't be automated away.

Coming to terms with taking individual responsibilities in general is very hard. Most people want others (Government) to do it.