Oh right, that's why I don't play SR
I just played an incredibly depressing game. It started out great, but went down the shitter when my team couldn't mentally handle getting slightly behind. Jhin and I (playing blitzcrank) shit on the enemy bot lane, but their team supported them by constantly ganking bot. This was fine because Jhin was very powerful, but Kayn was getting rekt in the jungle and only digging himself a deeper hole. He continued to buy expensive AD items that offered no survivability, which made him die. The more he died the more he got tilted and screamed at allies in all chat. Kassadin also got tilted off this because Kayn blamed everything on Kassadin not pinging MIA once when Kayn invaded the enemy jungle.
Kayn raged and raged, becoming a completely dead teammate that was borderline feeding, but at the least intentionally throwing. He chased kills into the enemy base before we got the T1 tower down.
Maybe you're just bad at playing Kayn. Maybe you are just bad at playing jungle. Maybe you should just accept that and try to improve instead of raging at allies and blaming your team.
The entitled children that play this game are the reason why I stick to RGM and ARAM 95% of the time.