Herod was an Edomite, but the scribes and Pharisees were definitely not mixed in with Edomites. They had very strict rules about Jewish/Levitical lineage, to qualify for such positions. Such records were kept in the Temple, going all the way back to Abraham, as is demonstrated in Matthew's recorded lineage for Jesus.
As for your contention that "The word
'hated' spoken of in regard to Esau, had the meaning of
loving less", is not true. I have done intensive study on the word 'hate" used there, and it definitely means 'hate' in it's most virulent form!
God has promised destruction of Edom, the progeny of Esau who are centred around Mecca from Teman to Dedan (
Ezekiel 25:13) He is going to turn their oil into rivers of fire:
"For My sword is satiated in heaven,
Behold it shall descend for judgment upon Edom
And upon the people whom I have devoted to destruction
For the Lord has a day of vengeance,
A year of recompense for the cause of Zion.
Its streams will be turned into pitch,
And its loose earth into brimstone,
And its land will become burning pitch.
It will not be quenched night or day;
Its smoke will go up forever.
From generation to generation it will be desolate;
None will pass through it forever and ever."
Isaiah 34:8