I think you are simplifying things Krajzen.
1. Demanding polish Civ in a game by a polish community and generally, players have a longer history than a recent nationalist trend. Much longer.
2. Hoping for Poland in Civ game has nothing to do with this. I wouldn't consider myself as far right, nationalist. But I'm very happy to have Poland in Civ game. I think that's just normal local patriotism. It's common for everyone to play in a game with a character, fraction easy to identify. Most people in WoW play as a human. Guess why. This character is their avatar in the world. The same with Civ game. It has nothing to do with nationalism. First of all, i want to play as nation easy to identify, understand, and recognize. (generally)
3. I don't really think young right-wingers from Poland (still considering it as a youth's trend) are interested in Civ game, not even mentioning spending over 50 euro for it.

4. I wouldn't compare Poland to Turkey. Far right nationalism there is not even comparable with (both scale and intensity) polish, or generally European

5. Yes, I agree that days (before polish inclusion into Civ) lots of Poles were well seen in forums demanding polish Civ, and very irritating with their complexes. Even for me.
@Haig not all of them are literal Nazis, but they are just stupid to walk in such march. Again - It's more a trend among the youngs. And almost all of them are ultras football supporters coming from all Poland - so the have their day, and they are well seen that day :/ And a majority of the world than think PL is nazi. bullfeathers.