How to keep cool when you are in team with ignorant bad players?

Okay, i main jungle/support, and i can't help but notice that there are A LOT of bad solo laners that just go for meaningless trades/push without vision/overstay/go 1v2/ stay on lane after getting ganked and wasting flash etc etc, yet i'm the one who is at fault. What i'm looking for is some kind of justified toxicity, cause you can't just keep cool when your toplaner dies 1v1 and then blames you for losing his lane. YOU FEEL ME?
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