Just played a Game as Supp Thresh, Had a rengar jungler and a Vladimir mid.
Me and my Carry Vayne were doing Decent in bot lane, but then their quinn started ganking botlane, of course i wasn't going to survive that fight cus my low armor and health at the moment, so i throw a lantern while i walk back to our turret, quinn pushed vayne away from the lantern so she couldn't scape and then rengar decided to show up with half hp, granting quinn another kill. After that Rengar started Harassing me for not helping and for being a coward, even tho i told him to don't engage her because i was lower than 30% hp, he was telling everyone that i sucked and taht they should report me.
The game goes on and rengar gets killed 5 minutes later in the river, which i had fully warded (only one warding tbh), Vladimir decides to walk down to bot lane and gets ambushed near the dragon pit, to which i throw him a lantern but he decided to stay, resulting in his death, so he says "Wtf Thresh no help", i tell him that i couldn't do much as a Support vs a fed quinn and the enemy adc/supp trio, but maybe that wasn't enough for him , maybe i had to go die with him and give the enemy team more gold.
To be honest the only 2 ppl that weren't toxic to me were our Adc and the Top laner, I don't understand why ppl have to blame everything on the support.