I know quitting a game voluntarly is bad and unfair for my team
You know what else is unfair for my team though? Putting a Plat 4 Katarina vs silvers in TEAMBUILDER.
I'll write your dumb "I agree" this time, but don't expect me to stay positive and actually enjoy myself when you put someone in the top 15% of this game against people attempting to learn. You learn nothing from getting facerolled. It's like asking a new mountain climber to go ascend the Kilimanjaro for his first time.