I in contrast highly doubt that Apple would release a potentially super popular product that doesn't create a profit. My personal assumption is that the profit margin for the MB Neo is quite low, but it still exists.

Their advantage is that they have long running, very tight contracts with their suppliers, and extremely high vertical integration. They don't have to share a part of the profit margin with Intel or Microsoft. Also, they have a simple product range with comparatively few SKUs, and produce an extremely high volume of units, taking advantage of the economies of scale.