It seems to me that the European Union does not want Trump to become president. If you look at it, these court cases have been going on for a very long time, and we do not see any results. Perhaps there is not enough evidence, or perhaps the accusations are false.
European Union isn't some kind of monolith that has one sided opinions. I would argue that most of them don't want him, but that's not "European Union" not wanting it.
And what are you talking about accusations? He was already convicted, because of EVIDENCE! By a jury that both sides agreed of being fair.
Why justice was delayed in the first place is a good question. I am thinking they wanted to make sure that there wouldn't be loopholes, and all the evidence would be gathered, and everyone else involved intervieved and sentenced. And then there's the issue that sentencing ex president isn't something anyone takes lightly.
Still, justice was delayed a lot. And there are more court cases to come, but for now, we wait for the sentence. Let's hope it will be delicious.
