>>717737401 (OP)
Edelgard repeats all the same mistakes that Rhea did when making Adrestia, and Hubert even kills people Edelgard orders to keep alive and she doesn't bother to punish him for it. Edelgard ultimately just wants to control all of Fodlan out of bitterness that Adrestia's maximum borders, gained via conquest, shrunk over the years as people got sick of being oppressed. She blames all of her problems on that loss of territory that made Adrestia not dominate everything.