I think they mean more a currency with libertarian aspirations, not a currency for libertarians. There is certainly an anti-state, above the law sentiment prominent in the ecosystem.
Bitcoin !== crypto, and there are a lot of blockchains whose founding teams are far from libertarian.
Also, please point me to the places where the white paper espouses libertarianism?
The bitcoin genesis message isn't a direct criticism, and the politics can be interpreted in different ways. One narrative is certainly libertarian-aligned (government shouldn't interfere with businesses and just let market forces drive things). But it's not the only interpretation; for example, there's an argument to be made for a message like: letting banks overextend themselves and then needing to be bailed out is a regulatory failing, and peer-to-peer digital currency offers an alternative to a system that lacks regulation that protects consumers and instead relies on corporate bailouts.
I will concede that the Venn diagram with Bitcoin maximalists and libertarians is significant. But again, Bitcoin !== crypto, and if you look at other blockchains, there's a very wide range of ideologies in the apocrypha.
Exactly, politics is embedded in the crypto ecosystem, where most want to be extragovermental. If you are building something that tries to be money or a security, where people are voting, or is a "token with utility" then you cannot avoid politics being part of it.