I'm proud of my inuit brothers and sisters. The Americans may finally fucking get the hint. Apparently it wasn't enough to see that one inuk rip up American dollars when those cringe American youtubers came to give out maga hats an free money earlier this year.
Trump and his subhumans thought that the greenland-denmark conflict would benefit them, but honestly, it's got nothing to do with them. We have tried to sort out our differences while America has been an annoying mosquito trying to make our relationship troubles about them. Dumbasses. Greenland is their own people. They are their own nation and someday it will be official, but we aren't there yet and while they have a lot of issues with Denmark, there's no doubt they prefer us over America until they can stand on their own feet. It was never a question.
External self-determination cares little about national laws. That's kinda the whole point. The real question is what type of conditions need to be met before a right to external self-determination arises and is recognized by other countries. In general, most countries don't recognize a right to unilateral seccession under any condition. At the same time, it is also agreed that if a state were to make the practice of internal self-determination virtually impossible or meaningless, then a right to external self-determination should arise. In which case any "no backsies" rule under US national law (even the constitution) may be seen as a breach of fundamental rights.
With independence, it usually comes down to who has the bigger stick (in both material and ideational terms). The are definitely scenarios in which US states can make a valid legal case for independence but the conditions for that still haven't been met as most international lawyers will agree that Americans in all states are afforded the right to internally self-determine. For now. Things are changing quickly.