And I will harden Pharaoh's heart, and he will pursue them, and I will get glory over Pharaoh and all his host, and the Egyptians shall know that I am YHVH.” And they did so.
Exodus 14:4 ESV

God didn't hate ancient Egypt, not the way we usually think of "hate". The purpose of the #10plagues and destruction of the Egyptian army was to teach Egypt, the nations, and Israel about God.