Is There Really Free Choice? Parshat Bo

The Principles of Emuna guarantee free choice for each one of us. Without free choice, there can be no context for reward and punishment. With that in mind, how could the Almighty strip Pharoah of his free choice? Also, what would have happened if the Ten Plagues and the confrontation between Moses and Pharaoh were current events? How would Biden, Blinken and the rest of the world react?