Up it to $5 million per Greenlander then. The US can afford to pull the trigger on a $250-$280 billion acquisition. The EU can't afford to counter it. To put that sum into perspective for the US economy: that's merely 2.x years of operating income for Google. There's no scenario where the people of Greenland reject that $250b offer in a free vote.
Where is that money coming from? The defense budget is 800B - this is a major budget item just throwing money in the trash along with most of your alliances