I would bet that, like me, that PC in your sig runs more than one operating system.
It can, but it doesn't. I only have Windows 10 installed. I'm more then satisfied using Windows 10. My system is lean and clean - custom built for my needs, from the ground up.
I do miss a few features from OS X, most notably being able to preview a document by clicking on the avatar/thumbnail, and seeing the file image, or scrolling through the PDF when in columns view. ...which brings me to columns view. I miss that as well to some degree. But, those aren't deal breakers for me, and I have work around for previewing my photography. It doesn't take but an extra couple of clicks.
Someone might suggest those extra couple of clicks will add up over time. And while that may be true, the amount of time I save in my workflow, while working on this Windows 10 photo editing workstation, far outweighs that little extra couple of clicks for previewing my work in their respective folders.
Could I have gotten a 4-core iMac and make it work? Sure. But I would have spent over $3,000 to do it. I paid $1,950. Plus the iMac only has (1) internal flash drive -- all other storage options are external, and I never keep my working files (active or back-up files) on my boot drive. ...I can have (2) NVMe drives, as well as (3) 2.5" SSDs in my PC. And I still have (4) USB 3.0 ports, (2) USB 2.0 ports (for keyboard and mouse), and (2) USB 3.1 ports, along with 3 open PCIe slots. I can swap out my Radeon RX 580 for 1080ti if I feel it's warranted. I can swap out my 8-core CPU for a up to 18-cores without having to change my motherboard (though I might need a new power supply for 18 cores) . ...expansion and upgradability Apple simply can't touch.
If Apple would release a tiny tower with the i7-8700 (or i7-8700K) CPU, dual internal user upgradable NVMe slots, GPU options ranging from the 8GB Radeon RX 580 to the Vega 64, up to 64GB of user upgradable ram, with 4 Thunderbolt 3 ports, and 6 USB 3.0 ports, I would likely come back to Apple if they made this starting at $1,600 with 16GB RAM and a 256GB NVMe drive.
If Apple made this tiny tower with the 7800x, upgradable to the 7900x, and start with a similar price point of $1,600 (with these specs: 7800x, 16GB RAM, a 8GB Radeon RX 580, and a 256GB VNMe boot drive)...I'd switch back to Apple in a heartbeat.
...I believe a TON of Apple users are waiting for this machine.