To start off, the question is: Why does it concern anyone on Xbox One or PS4? What others prefer?
(I'm not one to ask but seriously)
If you play PS4 why does it concern you why people who play Xbox choose to play it? Same goes for Xbox players.
Exclusives are a thing that can make any console great. I play Xbox One and I'll admit the single player exclusives are excellent, The Last of Us is a great game I've watched the entire gameplay walkthrough on YouTube.
And Xbox One had magnificent exclusives as well, Halo is an award winning franchise and it's one of my favorite games ever created. Gears of War is a nice exclusive for Xbox too.
So either way both are good consoles. So ask yourselves this, even if you do sit and complain about what console people prefer to play, do you honestly think your opinion will change their minds and they'll sell the console they own for the one you like more?