Filled with errors. Many of the listed were in Persia which is Iran not Iraq. There was no Iraq at the time - the country was Persia modern day IRAN not Iraq.
Babylon and Persia were certainly two distinct states. As was Assyria. He clearly says that he means the land area of modern Iraq, not the actual state of Iraq.
No exactly so.
Persia was in the location of modern day Iran. Assyria and Babylon are in different parts of modern day Iraq.
The descendants of the Medes are the Kurds who are in parts of modern day northern Iraq. Therefore, you have some points in your favor since it was called the Medo-Persian Empire.
I think Esther was the queen of the Persian king, so that shouldn't have been in Iraq. Also, I'm unclear whether Daniel in the Lions Den would have been in Iraq since that, too, happened under the Persian king. However, he could have stayed in Babylon and had it happen under the Persian regent.