[Cronos]

If they leave Denmark, they do not automatically get entrance into the EU. Most likely they will not be allowed to join the EU - Spain will veto (as it wants to prevent Catulnya separatists from getting ideas)

Danish "rule" has been really light since WWII. The locals are for all purposes independent except they get a lot of money from Copenhagen (akin to how Northern Ireland gets a lot of money from London); they can maintain their language and culture. I don't see any benefit for them to be de jure independent (in contrast to Catalunya where I see some benefits)

[Enchante]

I wouldn’t think so. I was referencing the line in the article which said that an independent Greenland would be the poorest country in Europe. I would not have considered them in any way a part of Europe without the legalistic Denmark connection.