So this is just my opinion but I just had to say something about this. So negative attitude is something very common in League and just the human race overall. But in-game when someone says "omg gg we lose" after your team gives away first blood. That's negative attitude.
But, **realism** is when the score is 0-13 (or whatever really) at 18 minutes. It is pretty much a loss, the chances for a comeback is too low to even try.
See the difference? Just wanted to say something about this since it seems like nobody really gets the concept.
Edit: I really didn't think people would've cared so much about such a stupid topic, didn't want to make a fuss about it.