This guy's explanation is super sloppy and he doesn't know what he's talking about.

Esau's relationship with the Edomites is a spiritual one. Esau is Edom, spiritually. God hated Esau, meaning Edom. They are one of the two peoples the Lord talked about when speaking to Rebekah.

The Lord said to her, “Two nations are in your womb; And two peoples will be separated from your body; And one people shall be stronger than the other; And the older shall serve the younger.” — Genesis 25:23

Two nations, two peoples. One loved by God, and one hated by God. Israel and Edom, the Israelites and Edomites, Jacob and Esau.

He uses Genesis 33:9 as proof that Esau was blessed.

But Esau said, “I have plenty, my brother; let what you have be your own.” — Genesis 33:9

What a stupid argument. I know Matt Slick from years ago, I have debated him before. Has he not read:

Behold, these are the wicked; And always at ease, they have increased in wealth. Surely in vain I have kept my heart pure And washed my hands in innocence; For I have been stricken all day long And chastened every morning. If I had said, “I will speak thus,” Behold, I would have betrayed the generation of Your children. When I pondered to understand this, It was troublesome in my sight Until I came into the sanctuary of God; Then I perceived their end. Surely You set them in slippery places; You cast them down to destruction. How they are destroyed in a moment! They are utterly swept away by sudden terrors! Like a dream when one awakes, O Lord, when aroused, You will despise their form. — Psalm 73:12-20

God hated Esau, and by extension all of Edom, which is a spiritual place where all of the wicked spiritually dwell.