I remember the last time Apple had Mac clones. The Mac clones cost less than Apple's Macs and Apple shut it down. Power Computing used PC parts to make their Mac Clones like IDE drives instead of SCSI drives, etc.
If I was Tim Cook, I'd have Apple make ATX motherboards with Mac BIOS and upgradeable slots and CPU socket and sell them to Mac Clone makers. So they can put in a graphic card and other stuff. Have Apple control the quality of the motherboard and let the cloner add the other parts to make it a full computer.
There is a Mod-Book project to take Apple Macbooks and upgrade them with touch screens etc. http://blastar.in/wordpress/2016/10/12/kickstarter-mod-book-...
If I was Tim Cook, I'd have Apple make ATX motherboards with Mac BIOS and upgradeable slots and CPU socket and sell them to Mac Clone makers. So they can put in a graphic card and other stuff. Have Apple control the quality of the motherboard and let the cloner add the other parts to make it a full computer.