Besides the many trolls that commented on your post there is one thing everyone who makes these videos misses. They specifically said there are no trolls, they never said there are no bad teams.
I myself am only a decent player not the best. This way I usually support or jung. Something I have soon a lot lately is my team can't lane correctly but say we should just teamfight till we have fed enough. This isn't a troll, it's an idiot. "If 4 of 5 players can't control their lane, what makes you think that 5v5 can do any better?" I ask this question to the people that suggest this weird play but never get a response. I have jumped into these fights and tried isolating their adc or tanky support so we can all take out their easiest players instantly making a 5v4. Sadly though the same people who suggest this won't initiate even with 5 people. Usually I will catch a stragler and pin them down, all my team has to do is hold off the other 4 and our most fed teammate help me kill them. Sadly they all back off cause the people they fear getting close to them start rushing them to save their isolated teammate so they run off and leave me alone 1v5.
Of course when this happens I need to catch up so I go back to farming and leave them to their "plan" and try and get ahead while staying nearby so I can always catch stragglers and if they ever actually START a fight I can easily jump in.
Does anyone know how I can blame all this on myself? A team that wants to fight a losing battle, blames the fed initiator for dying to a support with 4 of their teammates backing him up, fails to take great opportunities. Seriously. Where?