To put your hermeneutical fears to rest, the Hebrew says ...
להביא את ושתי המלכה
to usher-to-come Vashti the queen
before the king
in/with crown of the kingdom
להראות העמים והשרים
to show to the people and the leaders
כי טובה מראה היא
that good looking was she
I can't find any verse in the Bible that would metaphorize [יפה] or its various declensions as nakedness.
I have even tried googling for "ancient persian euphemism for nakedness" and came up with nothing. But regardless ....
No woman, Jewish, Persian or otherwise should in accordance to biblical principles have agreed to appear before the king and his mob under such situations. To be a dance maid, where we presume those ancient times would involve some sort of poker game shedding of garments.
Vashti should be considered a righteous hero. She made her stand for modesty's sake. She will not be paraded before a bunch of men who had been intoxicated for 7 days. Would it not be a humiliation? And the consequence pornographic? I will say that Vashti is now at the gates of heaven welcoming those who stand for righteous principles.
Yet as a Jew, I am obliged to laud Esther as my hero. It was due to her opportunistic elevation to have unfairly replaced Vashti that saved Jews from yet another massacre. The rabbinic midrash about Vashti having skin issues was too simple-minded, by sweeping a complex issue under the rug.
The rabbis should have said that the misbehaviour of the king and his nobles were punished by their own laws to lose the privilege of the presence of the lovely and modest Vashti. Or perhaps, it was not about fairness, but that her position was out of alignment with divine plans.
We must note that the book of Esther is one of the two books in the Bible where there is not a single mention of G'd.
Is it fair for Jews to reclaim our homeland to displace the "palestinians". Why are we parading the "palestinians" in their nakedness. Are they not human as we are? Have Jews lost legitimacy to the land after being exiled from our homeland?
Let us say, 200 years from now, would it be fair if descendant Tibetans were able to muster the military might, to cleanse Tibet of non-Tibetans? To reclaim Tibet? Is it fair for them now? The Han/Tang Chinese should graciously bow out and excuse themselves from Tibet, shouldn't they?
If my bicycle were stolen and someone paid 20000 rupees for it. And when I found it, do I have the right to my stolen bicycle or not?
As far as the book of Esther is concerned, Esther was the rightful queen to the throne. Vashti conducted herself in righteousness and godliness. Do two rights make a wrong?
But I realise, your Christian scripture says (if I read the koine greek correctly), "yet to those who love god, all is synergy for good, to those being called with purpose."
(BTW, I am so miffed how your bible translations go out of the way to mistranslate Romans 8:28)