Is it not referring to the Edomites (I think they were decendents of Esau).
Rather than Esau himself.
Malachi 1:1-5 NKJV
[1] The burden of the word of the LORD to Israel by Malachi.
[2] "I have loved you," says the LORD. "Yet you say, 'In what way
have You loved us?' Was not Esau Jacob's brother?" Says the LORD.
"Yet Jacob I have loved; [3] But Esau I have hated, And laid waste his
mountains and his heritage For the jackals of the wilderness."
[4] Even though Edom has said, "We have been impoverished, But we
will return and build the desolate places," Thus says the LORD of hosts:
"They may build, but I will throw down; They shall be called the Territory
of Wickedness, And the people against whom the LORD will have indignation
forever. [5] Your eyes shall see, And you shall say, 'The LORD is magnified
beyond the border of Israel.'