Pay them and they will.
There are 56K Greenland residents.
Give them tax free earnings.
In fact make Greenland a TAX EXEMPT haven within the USA and every corporation will open up an office there and claim Greenland as their headquarters. Similar to companies that operate out of Bermuda.
EVERYONE has a price. We are all “puttanas” when it comes to money.
That is a plan, but:
1. Currently 50% of Greenland’s budget comes from Denmark (3.9 billion DKK ($570 million USD)) - the federal govt would have to agree to put this money in annually from US tax dollars.
2. Greenland has 2 seats in the Danish parliament - the USA would need to offer one or two Congress seats
3. the official language of Greenland could have to be Kalaallisut (Greenlandic)
4. AND The USA continues with Universal Healthcare for the Greenlanders at Danish levels
If the USA allows that, the Greenlanders would have I think little to no objection to joining the USA.
You think so?
How much would Israel accept to sell Jerusalem to anyone?