The thing is a lot of the old arguments have never been resolved. Factions still at war, Sansha's Nation still enslaving the galaxy, Amarrians still wanting to enslave the entire galaxy, does God exist, does God agree with the Amarrians, are all Gallente just drug abusing sexual deviants and have the Civire really regressed backwards to looking more like apes?
The point is, people's characters are built around these things, they aren't going to change their opinion or belief system because "That's old, find something new to believe passionately in." Yes the arguments go around in full circle, but every so often something new comes out of it.
And yes while you've "been there, done that 1,001 times" newer players and characters haven't. It's hardly right to dictate what should and shouldn't be debated on the basis of how many times you've seen it happen. If you want a new subject, bring it up yourself to get people interested in it. It doesn't help that the Summit seems to be the only stable constant source of public RP either, I can't honestly think of any other channel that is open to all of New Eden where someone can enter and get involved in IC interaction with the exception of diplomatic channels relating to specific corps and alliances.