If I were to convince a Bitcoiner to embrace Libertarianism, this is an outline of how I would do it:

The Bitcoin network is not fully resistant to censorship as long as there's a government monopoly in the regulation of the provision of internet services.

An ISP is legally bound to block off your internet access if the state orders it to.

Spectrum is considered a public good that everybody owns, in theory.

The state owns all of it, in practice.

By 'own', I mean that the state has the ultimate say in the usage of spectrum and the ends towards which it is used.

Ownership rights in spectrum is inevitable and necessary since there exists scarcity and conflict regarding its use.

However, no homesteading or first appropriation was involved in government ownership of spectrum.

A law was written and passed, after which the started owning all of it, by fiat. (Whether this was done democratically or by other means does not matter. Fiat is fiat)

The state then leases out the spectrum to ISPs, through auctions.

You'll also need to procure the mandated licenses to set up an ISP.

Hence, a libertarian legal order which enables the provision of internet to become fully privatized is necessary for Bitcoin to become truly censorship-resistant.