Answer

The rest of the world received its own commands, the seven commandments. Just as Israelites did not receive commands like the priests did. Each circle has its role.
The question of why wait two thousand years reminds me of the question: how did He awaken at precisely that moment to create a world? What was before? And seemingly there is a change in the Holy One, blessed be He (based on the unfounded assumption that there cannot be change in Him). All these questions assume something that is not necessary at all. They view every entity (including the Holy One, blessed be He) as an entity that exists at a particular moment in time, and perfection is defined moment by moment. That is how one can ask whether He was perfect at moment X and at moment Y, and therefore also adopt the assumption that He must be the same at all moments (that is, that change in Him is impossible). But if one sees the perfection of the Holy One, blessed be He, as a perfect function of time—that is, His conduct across the time axis defines His perfection—then these questions fall away on their own. This function across the entire time axis from which point onward a world was created is itself His perfection. This is somewhat like Einstein’s conception in his special theory of relativity, that the fundamental entity is not a physical being at a point in space-time, but a “worldline” (the entire function). And there is the well-known condolence letter he sent to the family of his friend Besso when he died.
And all this is even if one assumes there was a time axis before creation, which in today’s physics is generally accepted as incorrect (the assumption is that time begins with the Big Bang).
In short, your certainty (in saying that my arguments are inconsistent and unintelligible) has no basis whatsoever, for many reasons, each one of which by itself could overturn it.