I'm sorry...this makes the people and government of Greece look like they are the villains in this situation when they were absolutely not. The people and Greece do not owe their former monarchy or it's current members anything. Let's take a look back at what that lovely monarchy did.
The only alibi I can give to Constantine is that he was only 23 years old when he became king and he did not have the political experience to know what he was doing. But still, he refused to listen to the more experienced (and elderly) PM Georgios Papandreou when he advised him on how he ought to conduct himself, which led to Papandreou’s resignation, political instability, and therefore paved the ground for the 1967 dictatorship to take place.
If you do not respect the opinion of ‘your’ people who voted you out by a massive majority of the votes (nearly 70%), then you're gotta have to deal with the state and people's reaction to it.
You are definitely mixing things up when it comes to the overthrow of the colonels and Constantine´s role to fit your narrative! Yes, it might have been a mistake he swore in these men, but he clearly never supported this regime or was happy about it. Yes, mistakes might have happened, but the King never denied that. You forgot to tell that he tried to stage a, failed, counter-coup in december 1967!
The 1993 trip to Greece was a great success for the family and of course they had every right to be there! It is a scandal that they tried to prevent the family to return to Greece for so long! That the officials did not force them out, except of flexing their muscels by having their war machinery over the royal family´s holiday yachts with small children on bord, speaks volumes! They knew it would have been unjust! I remember this superb documentary vivately and I enjoyed every minute of it.
Again, exiled monarchs NEVER put down their titles. If Constantine would have done so, he would have been the first one to be restyled "Prince" again! The german Kaiser was always "the Kaiser" until the end - he, although very unpopular these days, is still referred to as such. Emperor Karl of Austria-Hungary was never called other then Emperor Karl, the Ex-King Umberto of Italy, the romanian and the bulgarian Tsars, the last Tsar of Russia,.... the list goes on. This ongoing obsession why this family considers itself still as Royalty is really beyond me...! There is more "blue blood" in the veins running of the late Ex-King and his Queen and their children than most royals in other countries these days!
And how dare you say Constantine sneaked into Tatoi and "stole" things?! He hardly cannot "steal" anything from his own possessions! The criminal socialist greek state of the early 1970s was the one which STOLE this resicence and everything in it! Tatoi was a PRIVATE property of the greek royal family from the beginning. It is another scandal that the greek state didn´t hand back the house to their rightful owners! Instead, they had it rot down since decades...
But I guess my sense of justice is very different from yours!