Comment by john_alan

I don't think that's fair, they've spent a lot of time and effort ensuring the Mac is still an open/UNIX like platform, including (where they didn't have to):

- Per-install boot security policies

- Custom kernel boot (kmutil configure-boot)

- Raw-image boot mode

- XNU source releases

- Disabling SIP

- Disabling the Signed System Volume

- Third-party kernel extensions

- Developer ID distribution and notarisation

- Gatekeeper "Open Anyway" override

- Hypervisor.framework

- Virtualization.framework

- Rosetta for Linux VMs

- Nested virtualisation

- macOS guest provisioning

- DiskImageKit

- Custom Virtio devices

- Containerization framework