Seeing how Bretonia uses its space as a toilet, my Gaian has no patriotistic ties to Bretonia whatsoever, though he chooses to side with neither in the war. As it has been stated, the detailed picture varies from individual to individual, and we are not closed to people from other houses, provided that they actually care for our cause.
ninja-EDIT: I kind of agree on trying to slowly extend our influence and forging new alliances with like-minded factions. Bretonia is not the only place being tormented, though it is undoubtedly the most tormented.