blaming support

i just got done with a comp game playing malzahar support and i was blamed by my team for being useless. well. blamed by the jungler zac and mid zed. we were bot lane and had an advantage almost getting turret. probly would of killed remaining 3 low health enemies if we kited. anyways. our moakai, zac, and zed decide to run straight through the tower and try to kill the malphite, morgana, and aurellian sol. malphite got a triple and my adc and i escape. the rest of the game they run straight into fights by them selfs or don't even come to a fight. malphite was fed and moakai kept running into 2v1s and 3v1s and during. they blamed me for being useless. i ulted everyone they asked for me to ult and burned all my stuff just to save someone who was gonna die. but they just think they can 1v5. they called me toxic when i literally said "they got a free from that, wasn't a good idea" to my adc caitlyn who used her e to jump into a 2v1. join and morg killed her easily. the thing is she was very low and she was running under tower. the enemies were half health. zed never pinged and only time he talked was when he would stand still and die then proceed to call us retards