[jacquesm]

Florida on its own is also not a first world country. This goes for many places and it isn't the flex you make it out to be, the fact that Greenland is part of Denmark which in turn in part of the EU and which the USA through NATO is bound by treaty to defend rather than that threaten to invade is a detail that may have escaped your attention but it matters rather a lot to the rest of the 'first world'.

[threemux]

Florida on its own would absolutely be a first world country with a GDP comparable to Spain or South Korea. Pick a less prosperous state haha it has multiple cities with a greater population than the entire island of Greenland

[jacquesm]

There is a lot more to being a first world country than you make it out to be. Florida only works because it is part of the USA, if it were not it would not manage.