Let's say there's a story of a kingdom of kingdoms divided and an empire threatening it. The kingdom of kingdoms voted to leave the empire and so the empire is dictating conditions that threaten the freedom of the kingdom of kingdoms. They all live in a world where votes still exist and indeed are meant to mean something. The kingdom to the north had a campaign to leave the kingdom of kingdoms, they did not succeed. Then the kingdoms of kingdoms voted to leave the empire and the empire set the terms and conditions on the kingdom of kingdoms including a failed proposal that had split the whole voting process in the kingdom of kingdoms in half because it meant giving a kingdom in the kingdom of kingdoms to the empire in exchange for leaving the empire. The kingdom to the north is trying to stop the kingdom of kingdoms leaving the empire, vowing to vote again if the kingdom of kingdoms succeeds in its secession from the empire. I want there to be trolls and queens and goblins and un industralised. I also want to write in symbols of lions and unicorns to represent real life kingdoms - I'm thinking unicorns could be the mighty and noble equestrians / mighty beasts of animals from the kingdom to the north who form part of the kingdom of kingdoms army, with lions to the south from a southern kingdom; Another kingdom to the south have dragons; This army also has dragons from that kingdom. **There's an out of work troll on the bridge between the two kingdoms to the south that was taxing, but not a highway robber/out law. It had a troll booth but now the kingdom of kingdoms has decided to let it go. I think a prequel about how one kingdom with its own dragon, many years ago... And make that story the origin story of the kingdom to the south with the lions (and werewolves). How there was a 5th small powerful kingdom that was there before all the other kingdoms. The fate of this kingdom however becomes the beating heart of the lion kingdom and that's where the capital of the lion kingdom is now. *Note to self, get better names for these things instead of calling it 'the lion kingdom'.
So, that means... Writing about Brexit and the SNP and the DUP and.... And my story of an ancient city state with dragons that was all powerful, that was like a hidden gem cut off from a once great ancient empire. So.... I'm talking thousands of years of history here. I want this to be un industrialised, with the initial story. But I want my prequel set in another more earlier age. And... I want that story to have roots in another empire that existed many years before that. I want there to be an olde worlde (is worlde a word)? feel to it, and with the prequel, I want there to be a mighty and ancient source of power that explains it all feel to it, so 'ancient fire', proud army, had a dragon of it's own that you find out about in this story.
I suggest remembering one very important rule--a work of fiction does not and cannot prove anything. Since you're using loaded terms like "threatening freedom" and "votes mean something", it sounds like you have a clear opinion on the RL political matters. Making the story an obvious polemic for one side or the other means you'll just end up preaching to the choir.
I guess mine is story about power struggle. One thing I wonder is, how will it end? Alas, we're not there yet.
I suggest reading Game of Thrones and then doing extensive research of what countries the areas inside Westeros represent to get an idea of the scale of what you're trying to do. You cannot fit everything you want to write about in one book. You don't have the time or the word count for that. A story with the plot lines you want to delve into needs to go for multiple books to get the depth and understanding across to readers. And adding a subplot about an older time period that still has effects on the current one will take up more room. It looks like you want to write a modern day based Game of Thrones to be honest. Reading them will do you endless amounts of good. It has politics and an 'olde world' element. But I would be careful about making your stories overt propaganda for your own political beliefs.