You asked - What scripture tells you that Eliakim was a good guy?
Answer: none. What is the point? The scripture says that Shebna was a bad guy, so Shebna was replaced by Eliakim, son of Hilkiah. That implies that Eliakim was better than Shebna. But, even so, I don't see how that is important. What about the Isaiah passage leads you to be concerned about how good Eliakim was? I don't see how that is relevant to the message of Isaiah 22.

Then you brought up Josiah, and say that Eliakim was a son of Josiah. You give no explanation how Eliakim, son of Hilkiah, can be a son of Josiah. So right away, you have lost me, and I am unable to comprehend your writing.

Then you go on to bring up Egypt, Jehoahaz, The Pharoah of Egypt, his brother Eliakim as King of Judeah, Jehoiakim, Syria, and Assyria, various wars with Israel, Cyrus, the king of Persia, Nehemia, and an Ammonite, Tobia, and finally, Evil Corrupt Priests who manipulated the pegging of Jesus Christ to the Cross -- in a scrambled, unintelligible tangle of seemingly unrelated people and events, without giving any rational explanation of why these people and events are relevant to the replacement of Shebna with Eliakim.

I am not trying to be critical of you here. I am trying to help you. If you have something to say, try again, and put things in order and make the narrative flow logically from beginning to end. I am not putting you down for your knowledge of scripture, I am just telling you that the knowledge you have didn't come through. If you want to share your knowledge, the audience has to be able to comprehend what you truly mean to say. Just knowing it is not helpful to anyone but you. To be helpful to anyone else, you have to be able to express it in a way that the audience can comprehend.

For you JR, I have jumped around in scripture, leaving my focus on Revelation behind. If I'm leaving you in the dust, I'm sorry. But, the Holy Bible is a glorious mysterious book that answers itself, and is self contained other than knowing History of the Christian Climb through time.
By the way, the Holy Roman Empire was brought down by none other than Napoleon Bonapart. Napoleon and his French Armies conquered most of the Holy Roman Empires lands and countries, leaving them "no Empire" to reign over. Napoleon himself, however, was an evil ruler of himself. When God moves upon the Earth to bring about his Word and Plan, he has only sinners to choose from.
Am I a sinner? Yes, my flesh wars against my spirit everyday. I had to conquer my anger at your buttinskis and accusations, but bother me no more. This is the last until I'm finished with Revelation. Can you wait?