Separation from God follows a perfectly logical sequence of consequences. The Holy Spirit's thought system is perfectly logically consistent, and so is the ego's. Everything which arises in the ego's thought system is a completely logical progression based on the dynamics of being separate from the truth.
It is possible to derive from the separation an entire metaphysical structure which puts into context everything which MUST happen and DID happen as a result of it. This includes the proper recognition of what the physical universe is, what the other dimensions/universes are, where it all fits into the picture, why bodies were made, and why there is death.
Regardless of whether you are an ACIM student or not, if you understand precise irrefutable logic, it is possible to see the true metaphysics behind the Course. What has happened in the ego split mind MUST happen in any split mind.
There is essentially nothing "special" about the ego's dream and nothing special or unusual about what has happened in it. There is nothing special about ACIM's metaphysics and there is nothing unusual or exceptional or out of place. There is only one way to separate from God, and there is only one outcome that results from it.
You do not need to go on a quote-fest, or nit-pick individual words, or dwell on whether Jesus said it in the course or not, in order to figure this out and be clear about it. In fact, if you can grasp the metaphysical background of existence then it will even clarify for you what Jesus meant in the Course when he said certain things, rather than having to rely on your own "best skills" at trying to grasp what it means.
There is nothing out of place in the ego's dream. Everything which has happened in it has been a completely logical progression of consequences and is perfectly consistent. There are no loopholes. There is nothing which just so happens to have happened for "some reason". What has happened is ONLY what had to happen and nothing else. The ego's dream is a closed system. It is entirely predictable.
There doesn't really need to be debate about what the Course does or doesn't say or who has authority to say it or what Jesus meant or what the quotes seem to suggest. Jesus wrote the Course FROM a mind which understands with perfect clarity a metaphysical context which ANYONE can access and understand and express from. If you don't grasp that metaphysical structure, then you will fall back to relying on "the words" of the Course or what was expressed based on that metaphysical structure. And then you will become lost, because you're once removed from it.
Without seeing the perfect metaphysics you will have to lapse into personal opinion. We shouldn't really be in the business of expressing personal opinion. We should be open to learning directly from the truth itself, or the source of truth/Holy Spirit etc, what the truth is. If we do not know what the truth is, we need to be able to admit this, and be open to learning. We should not be in a constant state of arguing and debating who is right. Either we're willing to accept the truth from the horse's mouth or we're just going to get into a big fight about whose version of it is the best. This is completely unnecessary once you can see the metaphysics behind everything.