Licensed or not, if a ship appears that then robs you of everything at gunpoint, they're pirates. The aggrieved party would say you're trying to put lipstick on a pig.
So, the issue for me is to consider them synonyms.
A corsair is a pirate, in some way, but a pirate is not a corsair, and "synonym" means that the two words are interchangeable.
It's like saying that "square" and "rectangle" are synonym. Definitely a square is just a rectangle with all sides with the same length, but one could not use the word to describe any rectangle.
I think he's considered benevolent because it was comparatively better than other communist countries and he managed to navigate the waters of European Cold War politics extraordinarily well for his people. He made sure that Yugoslavia didn't become a puppet state for the USSR.
A corsair is a pirate, in some way, but a pirate is not a corsair, and "synonym" means that the two words are interchangeable.
It's like saying that "square" and "rectangle" are synonym. Definitely a square is just a rectangle with all sides with the same length, but one could not use the word to describe any rectangle.
To me, each of those 6 names are not like the others...