Weird, never had an issue getting my hands on an Apple laptop of any desired configuration, even odd keyboard layouts for the region (UK and Sweden).
Had plenty of issues getting specific specification Thinkpads: because they are largely sold through resellers and they don’t stock all SKUs I suppose.
No where did I say you can’t get a hold of one, I said they don’t have the volume. They’re behind Lenovo, HP, and Dell.
The x86 market is massive and dwarfs Apple’s Mac manufacturing.