I suppose a welcome back is in order. I am one of those horrible, despicable and greedy players you speak of.
Do I play in both Ascalon and Thule? Yea, sure I do but you might be surprised to hear that I can actually play my characters. Prime example, I play (as my name here suggests) the Duke of Falconreach. He doesn't really care what the Exiles and Thule are up to. Still, other nobles wishes to see a nice border hence the Ascalonians that came up there to sit and say "lets fix the border". - They haven't attacked anyone to my knowledge nor do they aim to do so. A simple situation to be resolved by words is expected, no need to use force. Not in any way related to Thule. In fact, the only reason I became involved on Lyonell was that Strenvale wanted to mediate on behalf of the Exiles and also brought Lyonell in as help to do so.
On the other hand, Thule. They fought a small conflict with the Van Valens a few years back, following a few disagreements. Thule won the conflict in the end, after some early reversals. The peace was basically no changes for either side, though we never did bother to take back the one or two provinces that Valen took from us... because unlike what you believe, I am not greedy at all (nor Östfold or the rest of Thule for that matter). It isn't the land that is interesting, it is the fact that it is Rathgari land. Van Valen was respected and well liked by all Alfborgs, as a friend and foe. The Alfborgs were always happy to have him there, scar or no scar. With him gone however it is again not his land that is of interest to me but the fact that it is Rathgari. This is unrelated to Ascalon.
In the end, I do own plenty of land. I don't want more land if that is what you believe. In fact, as anyone that speaks to me would know, I fucking hate when I have to take over land nowadays because it doesn't serve me any good what so ever really. It just adds to my corruption across all characters, no matter if they're the Duke of Falconreach, a lowly knight or that Rathgari from Thule. However, I have to play my characters. Thule wishes to see Rathgari people in Rathgar as Dyre pointed out.
I don't know who you play so I don't know what information you have or where you've gotten it from but your perspective seems twisted to an extreme degree. I don't know if it is you who has put random OOC rumours on random characters across Thule that really do not deserve them or if it was someone else, following along the same lines. But frankly, I suppose it doesn't matter. Either you will listen to this and see that it really isn't as black and white or as bad as you seem to believe. Or don't listen to this and simply believe what you wish.