"bring macOS up to parity with Linux" sounds like a direction of development which wouldn't be very desirable for people like me.
unless the OS was behind on features that wouldn't affect you if they were there
There is not a single Linux feature you have named that would impede your day-to-day workflow.
Methinks the lady doth protest too much.
Linux users are like pickup truck drivers going to every motorcycle meeting to walk around complaining that motorcycles should be more like trucks. Different four strokes for different folks.