Lets not even get into how the Romulan EMPIRE, made up of dozens of star systems,
have they explained just how the Romulan Sun went supernova without the romulans knowing well before hand?
i mean, even we can measure a stars status right? if it is going to go supernova or dwarf or whatever years in advance, yes?
so how is it that an advanced civilization like the romulans didn't know this about their own sun..even using our current tech, they should have had a few years to start evacuating
and yeah, the only "empires/federations" that we have seen fleshed out over time has been the Federation
its obvious that both the klingons, the romulans , andorians, dominion ALL have subject/ contingent peoples and systems
we never see them though... but it should also be basic that the Romulans would have some fallback alternate planet to call their new homeworld among their empire.. you know, like the Alpha site in SG-1?
domestic servants on earth? maybe if they were members of the 'Spock faction' / vulcan reunification group we saw in TNG. they could have been exposed and cast out...but everyone? nah
it sounds sad, this show could have been good if they had followed more closely to the Borg issue and Romulan experimentation.. and the state of the empire after Shinzon..oh well, more squandering of potential (?)