Tariffs, invasions, threats of invasions, threats of invasions against allies, broken alliances due to threats of invasions, the International Criminal Court got banned from using Windows and Office because they were investigating our war crimes, suddenly everyone was interested in divesting from US tech stacks, BRICS got their own currency and trade system, China abandoned the petrodollar, the beginning of a widespread sell-off of US bonds
Perhaps for you. As a European, the shake-up came with the war in Ukraine. That this actually could happen, and could happen in other countries here, too.
Though, in the US, there seems to be some focus on what the country wants and does. The following I say more as a joke, but I wouldn't mind being bought by the US all that much (or "invade" as you say). In a way, US is the biggest ally anyway, after being incorporated it's unlikely that Russia would try anything.
Regarding Greenland, it has been Denmark's colony, who has kept the natives in check there. Maybe it wouldn't be so bad to go through these injustices and choose a different parent country?