Do you remember the kids at school who cheered on the bully, and what gobshite cowards they were when they were on their own? It's the same as the fucking bootlicking lickspittles cheering on Trump now.
Anyway, if Greenland wants to stay as it is, then taking it over militarily might not be as easy as it sounds. And when the US starts taking casualties, they're not usually as keen on sticking it out as they were on starting it.
Taking and holding territory in Artic conditions, against a determined if substantially outnumbered population isn't easy. Someone might want to remind the bone-spurred chickenshit of how the "mighty" Red Army suffered in Finland in 1939 trying a not dissimilar land grab.
It should never come to it, because Europe and the US basically want the same thing (militarily) for Greenland; for it to act as a bulwark in the Artic. And it's madness for allies to fight, even in the 'might makes right' world. But then Trump is a greedy, stupid man, supported by weak, corrupt, cowards, so who knows...