That happens all through the Bible. Obviously members of the superior caste think of being part of a lower caste as being "a punishment". That doesn't mean it's a punishment.
Frankly, it's inconceivable that the Hebrews or Jews would operate a caste system differently than everyone else in the world.
As the saying goes, you are entitled to your own opinion but not your own facts!
You have no support for this fantasy of yours so I will bid you good night.
Sounds like you’re reading into the Bible what you think it ought to say, which happens all the time.