"Destroy Amalek" by @JuanasFabricias
In the Torah there is a commandment to completely wipe out Amalek.
1 Samuel 15:3:
"Now go and smite Amalek, and utterly destroy all that they have, and spare them not; but slay both man and woman, infant and suckling, ox and sheep, camel and ass."
The Rabbis are acting and instructing their Nation to behave according to it.
The Truth is very simple:
Their Vile Nature comes from the Religious Scripture — Torah.