It’s not a completely bonkers idea that the US could purchase all or some of Greenland. In the end, we’ll probably just see a strengthening or enforcement of the existing treaty for US military use of Greenland which is all the US wanted. Europe is still getting used to the president’s rather unique, and yes aggressive, negotiation style born out of his NYC real estate developer days.
I think you’ll find the EU doesn’t have much appetite for this sort of thing. They’ll take the risk at face-value, and put mitigations in place going forward (including if necessary, divestment from US tech firms)
You did not need any more strengthening of any military treaties with Denmark, the US could already open as any military bases on Greenland, there was nothing stopping you from doing that, sending more of your army there to deter China or Russia, or whatever else. Here, https://people.com/donald-trump-wants-ownership-greenland-ps... He is saying he needs to own it to personally feel good. How does this make sense diplomatically?
Any excuses you make will not make him look better or make him look like he can be trusted. If you want to achieve something in international politics have to be made carefully, not by threatening to annex Canada or parts of your allied countries.
Your president is just destroying the good image and goodwill towards the US with his 'negotiation style'. His style is childish bullying and temper tantrums, he can not be taken seriously as a reliable partner when he can say one thing today, and tomorrow say something totally different, even if you think you have reached an agreement with him on something.
This is what someone would say if they only know Donald Trump from TV.
Everyone who knows Trump from his NYC real estate days knows that he's (and this is possibly the worst insult any New Yorker can hurl at someone) "a bum." There's a reason NYC would never vote for him.
He doesn't pay his contractors, reneges on legal agreements he himself created, and uses legal threats and fights to screw over anyone he pleases, especially if they can't afford the legal fight. It's a lie-cheat-steal mentality, and might makes right.
It's not like, some hard-nosed NYC negotiating strategy. He's a crook. There's really not much more than that.