I am not aware of Denmark giving meaningful control of Greenland to China or Russia, nor or any plans to push the US out: therefore, while I think the principle is worth considering, I find it to be a small concern not worth angering allies over.
Does that answer your statement of confusion?
I disagree.
Probably something along the lines of "nice nuclear deterrent shame if it was to stop working" or "nice carriers, shame if the only aeroplanes that can fly from them stopped working"....