There is no analogy with diamonds, because Apple doesn’t buy up a supply. There is no supply to buy up - these are just a part apple has made for their own pro

There is no analogy with diamonds, because Apple doesn’t buy up a supply. There is no supply to buy up - these are just a part apple has made for their own product. If you use the logic that parts you make for your own products are ‘monopolies’, then most product companies are monopolies, and the term becomes meaningless.