I don't think you can declare yourselves citizens of a place you've never been too and no one on earth has any way of ever reaching. At least the Sealand guys actually went to their micronation at some point.
And honestly, the way the US is going it wouldn't surprise me if the republicans did nominate Grok for president in 2032 and the Democrats fumble the easiest win they could possibly ever have and end up losing to a chatbot.
)