There have been some, half hearted calls to turn the realm into a republic on the basis that there wouldn’t be fighting for the throne if you took the throne away. But what’s gone against this have been the numbers of good monarchs have outweighed the bad ones, the Kingdom likes its traditions, and nobody wanted to see the spectacle of presidential contenders vying for votes. The realm has seen this happen on Earth and think it distasteful and lacking in dignity.
Eileen’s past is a troubled one. She found out about her own mother’s murder (Marina - almost certainly killed for daring to speak her mind) only in early adulthood. Nobody had wanted to speak about it partly to avoid upsetting Eileen, who showed she knew her own mind from a very early age, but also because it was suspected (though never properly proven) Marina’s murder was akin to a politicial assassination.
Eileen swore to herself she’d uphold her mother’s reputation for truthfulness and belief that justice was worth fighting for. Marina, certainly up to her daughter’s defection, would be proud of Eileen.
Eileen still hasn’t told Jennifer anything about her grandmother’s past as Eileen fears Jennifer will think she’s trying to use this to exploit the girl. Eileen is vulnerable where Jennifer is concerned. Anyone else and she’d happily exploit them but not her own daughter.
Eileen would at some point like to campaign for a proper statue to be put up to commemorate her mother but knows she is unlikely to get this out of the Queen unless she agrees to returning to the Kingdom at once. FNN did once do a brief biography of Marina as part of their royal series but her sudden, unexpected death for whom nobody was ever brought officially to account, meant they could only give out sketchy information.