Sounds more like they hate the patrons that are voting for the wrong thing and not voting for what they want. This is what happens when you open up polls the greater majority will vote for what they like and out vote everyone else and will vote the same thing every time for every poll if they are given the chance to and they'll almost never vote for what you want. If you want to do a whole story on Nea then fuck them and just do it I mean it is your game. Just make them optional and maybe make it to where they can select do you want Nea in the game with a yes or no.
Polls should be used more to give you an idea of what people want to see but it shouldn't force you to do only one thing it is your games and what you put into it is up to you. If you want to do more Nea content then do it. I have no problem with Nea and they are optional for people so that they can ignore them if they want to. If you want to really annoy them you could do a Nea parental love crossover where Nea comes to visit because he's friends with one of the daughters or something and he can try to seduce the dad while they are there.