Toxicity in this game is awful

So I'm playing in a blind match as support. Adc runs his face into draven and sona and dies for free. He then proceeds to spam my choice of keystone as if that's the reason he died. Dude continues feeding and apparently that's my fault too. I leave lane thinking this is probably a lost cause, help get a kill mid, help get a kill top, bot continues feeding. Game actually ended up really close but jesus it's sad to see this shit going on. Report me the dude says, apparently it's my fault for not winning his lane for him. Next thing you know ppl gonna blame their support for every cs that they miss too lmao.