Re: "Windows is far easier to use for non technical people."
---"Games? The appropriate graphics cards can cost more than an Xbox One or PS4. PS4 seems to be winning there"----
So, you'e suggesting that if a Windows user switches to Linux, not only will they need to run any software not supported in Linux through a third party software layer and hope it runs with no issues, and they'll need to buy a console to be able to play games? Are you sure you're trying to convince me that Linux is a viable alternative to a Windows PC?
And not forgetting that neither consoles you've suggested are acceptable alternatives to a PC running Windows for gaming.