If the majority of Greenlanders are actually dumb enough to want to be a part of the US — after watching it collapse into a fascist, kleptocratic, failed state — then it means the mental illness really has been transmitted via the internet and the whole world is quite possibly fucked.
90% of the landmass is under ice, so people want the water, and they're getting chubs thinking there might be deposits of rare earth minerals as there are in the Northern Territories of Canada.
There is also public anger about a documentary by Danish broadcaster DR that claimed Denmark earned the equivalent of up to 400bn Danish kroner (£45bn) from a Greenlandic cryolite mine between 1854 and 1987.
Yeah, the US doesn't want to "freedomize" Greenland. We want to exploit it.