Of course, if the USA no longer wants those bases all around the world, the US government is entirely free to withdraw them.
https://en.wikipedia.org/wiki/List_of_American_military_inst...
It's an ally as much as it could be, the US's presence in Greenland is entirely because it is in US's interests, and for that, as an ally, Denmark has always allowed the US to deploy as many troops as it wanted. Also as an ally it allowed Americans to do business in Greenland.
What else do you want? You aren't even American for the Trump administration, do not understand how you got so entangled in this bizarre worldview.
This is disgusting.
I'm beginning to believe that there is no line that you won't cross to defend your idol.
Effectively you've departed reality and you are now in a world of your own making where the facts are no longer relevant, just how you can stretch and twist everything to make it fit your worldview.