Q: How is it that the Torah says that Isaac loved Esau? How could he have loved such an obviously evil person?
A: In the Kabbalah of the Ari it is written that the meaning of the Torah verse that Isaac loved Esau because of the (hunted) food in his mouth is that Isaac would hunt out the holy souls that were in the mouth (the inner dimension) of Esau. These are the souls of Rabbi Akiva and Rabbi Meir, who were the children of converts who descended from Esau.