Why do people quit trying after 1 death?

Is it tilt from previous losses? I seriously question, when playing a jungler, why people have to quit over a gank. It seems like, to win games, you need to play a jungler that ganks at level 2, like kha, who does a lot of damage and secures the kill himself. Playing a tankier jungler that takes a little time to get going is a risk in and of itself. The moment someone gets ganked because they overextended or whatever, they basically TRY to lose the game. Between farming my blue buff on the other side of the map to complaining about how I don't gank only to run away from me when I do and spam ping me danger signs saying gtfo and then complaining that I still don't gank, it just doesn't seem like they WANT a solution. They just seem to like wallowing in their own misery, blaming someone else for everything while actively trying to lose the game. Teleporting to your nexus tower from base, split pushing a wave way out in the distance while our nexus is going down, farming my blue buff during a teamfight we almost won. And the worst part is, when the game seems to be picking up and we start snowballing in teamfights, instead of riding the momentum of the snowball, the guy actually tries HARDER to lose the game. Like he literally cannot win the game for fear of what? Being happy? I mean, what does it take to get someone to play a game that turns out okay? I never pressured him, never used words against him. I just said alright dude, you do you. He WOULD NOT accept that the match was winnable. Is there really that much pride to be had in losing a game? "GG FF at 15 shit jungler" Jungler starts picking up kills and has a bigger presence later. "Guess I gotta troll cuz they won't ff!"