Look around. Almost the entire world disagrees with you. Maybe there's a reason?
Sure there is: Almost the entire world doesn't have a clue about computers or information security. I'm quite proud that they disagree with me in almost every aspect.
Why do you think so many linux fanatics still dual-boot?
Because Windows can't do somethings right, of course. Isn't it nice to have options?
Look, if you suddently realized you are not able to cope with maintaining your Linux desktop anymore, so you had to ditch it after so many years, it's your decision. Relationships eventually go sour, but you don't need to spill bitterness on every opportunity to make sure everybody sides with you. Move along and be happy. Forget and forgive. Nobody you blame you for switching to the "easier", "prettier" side. You have the right to.
Yes, it is not for the average dummy (and that's why it's not for "almost the entire world", which is the same thing). But there are some who see better value on Linux, and DO NOT chose Linux JUST because Windows costs money. And yes, there are nice things which come out of Open Source.