Can we stop pretending that buying Alaska (or the Louisiana Purchase 50 years earlier, or the taking of California and the New Mexico territories in 1840s) is anywhere near comparable to the modern geopolitical landscape. It’s not the age of western expansionism and Manifest destiny anymore. It’s not the era of colonial expansionism. Since WW2 the geopolitical landscape has changed drastically. So regardless of how you feel about Greenland, to compare anything currently happening to the land acquisitions of the 1800s is naive and historically inaccurate at best or intentionally misleading to gain debate points at worst.
As others have said, if you think because Greenland has critters and you like to hunt, we should take Greenland so maybe one day you can get a tag there is potentially the very worst reason to consider trying to take Greenland into the American system.
And lastly, “military pressure” does in fact mean that invasion is on the table. You don’t point guns at other people unless you plan on using them if need be. It might not be the next step or even the 200th step, but eventually, if your serious and don’t expect this all to be a bluff, the threat of military pressure means that the military would at some point be used to enforce the agenda. The eventual end of military pressure means force, or else the threat of military pressure is just a pointless bluff. Isn’t one of the first rules of gun safety don’t point at anything you don’t intend to shoot?