They were already setting up to keep it going forever when they spun their original oppression fanfic about:

We wuz slaves. We built the pyramids.

Two thousand years later (plus or minus), and it is indeed still going on. They just needed a new fanfic after archeology thoroughly and conclusively undermined what little was left of their fav headcanon in the wake of a secularized rejection of divinely retributive plagues, adventitious food on the ground, and miraculous parting of the Red Sea.

Warmest greetings and salutations to my JIDF groupies.