Americans are being killed in the street right now fighting back
More often than not, they're being killed on the street (or in their homes or bleeding out in hospital wards or in detention cells) without ever lifting a finger. This isn't Sparta. We're not a bunch of paramilitary guerrillas with years of experience resisting an armed occupation. The bulk of American resistance is rhetorical - protest marches, sit ins, etc - because that's what we've all been trained to believe is the most effective.
Not sure what point is being made here
That apologies fall flat when the bombs start landing. Greenland people need a real material international resistance to Trumpist Imperialism, not a Wisconsin Nice "gee golly this isn't what we wanted" letter from the well-meaning people working at the F-35 jet engine factory.