The important word here being "seems". Seeming is a thing that happens in someone's head. So the fuller version is "seems to an anonymous person who has tied their identity to a particular technology and a specific political vision".

It does not seem like that to me. Or to 99.9% of companies, who start out tying their companies to the reach of a specific national or regional financial system and then move happily beyond it.

In practice, starting with the use of the US financial system provides much more reach than Bitcoin, which has a much smaller user-base, something more like Bolivia or Switzerland, and whose "residents" do much less of their economic activity through that financial system than those in developed nations do.

Email is already open and international and doesn't need bank accounts. This is paid for email solicitation, and nobody needs to do that without access to payment networks, unless perhaps they wish to conceal their true identity because they're spear-phishing.