Greenland is a beautiful nightmare

I never understood why Denmark still bothers with Greenland. It seems to cost them a lot of money while at the same time they demand more and more autonomy. Danish isn't even an official language anymore. What does Denmark gain out of the block grant they give to Greenland?

Prime access to the most significant sea in the 21st century as well as lots of resources

By most estimates, in the mid 2050s the north artic will be mostly ice free, enabling direct and short travel between the states, Europe and the east

Three centuries together is a long time. Many familial, workplace and friendly bonds tie the countries to one another. Also, as long as the territory is vaguely yours, even in a confederation, it is at least neutral or mildly positive towards you. Not hostile.

If everything was about net money transfers, then the US could get rid of at least 15 constituent states, but half of those would be immediately courted by China, eh?