That's a sad story in many ways.

Trust me, the story might be sad, but I am a much happier man now.
Their XOne fiasco expanded my horizons, I was so committed to X360 that I've neglected other options. But when I saw what else is on offer, I realized that I have many opportunities I've never considered.

I purposely just wrote my story, instead of offering up an opinion or speculations about the original question, because probably all answers are correct depending on individuals answering.
There might be others like me, and in my case it was not a simple minus 1 sale for XOne, but also a plus 1 for PS4, so basically Microsoft's mistake doubled the damage to their marketshare.

May I ask how old you are? Really, it sounds as if you were very naive in your life. And you still seem to be as you still have a "this or nothing"-mentality, just with a Sony-tone instead of MS.

Xbone didnt need the Kinect and the DRM didnt help either.

Definitely the DRM fiasco. It might seem like the forced Kinect is worse right now, but if they'd gone through with that DRM bullshit, the thing would have flopped worse than the Wii U, Vita, Dreamcast, or even the Virtual Boy. After investing a billion dollars in games, for a flop like that to happen, Microsoft would have left the video game business. They saw that it was a mistake and fixed it in time, but some damage was still done. The forced Kinect definitely sucks, but it's not that big a deal, just as a forced Gamepad isn't that big a deal for Wii U. Once the Kinect and Gamepad start being utilized better, no one will care. DRM as a concept isn't even bad. If there's physical retail management, then there should be digital retail management. The way Microsoft choose to execute that, however, was draconian and tyrannical, and the fact that they even considered it did irreparable damage to the brand.

I am sorry, but I don't understand your inferrence. What does my age have to do with anything? I am quite old, have a job and a family and don't have much free time. Games are sort of an outlet for stress. So going with only one console is not my being close-minded, but practical. I don't have time or shelf space to use 2 or 3 of the same product. 

X360 for me offered a better experience, but XOne for me offers worse experience along with features and hardware I don't want or need. Because for 60-90 minutes of fun and relaxation before sleep, I don't need a Kinect. As I said, it is just my case.

A case in which $100 makes no difference, I spend that much monthly on completely unnecessary and random products.

A case in which DRM is irrelevant because I don't own a single disc-based product (whether film, music or games) except for some Teletubbies and Peppa Pig cartoons.

A case where I feel that forcing something upon me is unacceptable, regardless of the price.

And a case in which I personally feel that every MS product has a better alternative.

Honestly, when I wrote my first post, it was also because I felt that offering my personal story can be used as just one of the scenarios in question, and I really never expected that someone might take offense and start insulting me because if it. If anything, I would expect to catch grief if I started offering random opinions I have no clue about.

If you still have the need and urge to judge me, please fell free to do so, I will not be offended, it's an internet forum after all, but understand that I will not respond or converse with you anymore.

The DRM fiasco killed the initial launch hype and magnified subsequent grievances against the system(graphic power, price, connect bundle).

For me the killer was when the games launching on both systems kept having lower resolution on XBone. It would nag the shit out of me to pay $500 and know I'm playing an inferior version of the game.

Yes the X1 had multiple problems such as Kinect, DRM, weaker than PS4 and the high price. Its launch was terrible and even people who didn't follow gaming news knew how bad the X1 was.

Seeing people that change their mind in such a drastic way (you said you won't never ever buy a product from MS anymore?!) often happens that these people are quite young, that's why I was asking. I am not judging you - I couldn't care less what you decide to buy. It is the general attitude of making the world in two halfs - black and white.

But considering you don't have much free time it's surprising you managed to get 150k gamerscore.

Power has very little to do with the current situation. If so the Xbox (1) would have outsold the PS2 and the PS3 would have dominated the 360.