copying until certain point of degree is acceptable but when a company doesn't come with their own ideas an all that company does is copied the other company then for me that is completely unacceptable, I have self esteem and dignity. I'll be completely embarrassed if I dress like my neighbor and get the same haircut, talk like him or act like him, I like being different, that is what separate me from the others and that is what makes me unique but if you like windows then that's fine with me I respect your taste but I personally can't stand windows anymore, I admit maybe is a phycological problem. that os has a weird effect on me, it just infuriate me.
Windows has its own ideas. macOS has its own ideas. And they both copy heavily from each other and others too. The same applies to mobile phones, for example. I wonder what kind of metric you use to compare OSes? What is an "own idea"? That is very, very difficult to quantify.
Can you list the ideas that W10 has "stolen"? You claimed that it stole Night Shift from macOS. But then again, macOS stole it from IOS. IOS stole it from f.lux. So Apple was actually coping it too, but yet you only blame Windows for that...
I say: let them copy and improve as much as they can! That is also what makes Open Source so succesful: you share your knowledge so that others can improve FOR FREE!