Bad supports really make your life hell as an adc

Last game i was playing ezreal, i got a xerath support. nothing wrong with xerath support , we are up agaisnt a kasai an poppy support, i instantly tell him do not stand next to walls vs poppy. and what he does at lvl 1 stands in the bush goes to AA and gets wall stunned nearly dies, doesnt exhaust kaisai even though he just got caught out i waste my flash an heal to save his sorry ass an he still manages to die cause he turns to throw a Q. thats fine whatever, he comes back to lane and starts qing minions an AA pushing the wave like comeon i tell him his gold item goes on cd if he cs an he ignores me an keeps doing it. pushes the wave to kasai an poppy and then refuses to ward and i have to push out to CS even though im ez an im pretty safe i still get fucked if caught out by an exhaust. he spends all game spamming spells till oom pushing the wave to the enemy in their favor an i have to push out an risk getting ganked, ofc amumu comes to help us and in 3 vs 3 we cant win cause i got a oom xerath AAin an exhaust poppy while kaisai an olaf an trying to dive onto me. like dealing with supports like this is so infurating, to save your adc some mental health pls just pick something an sit afk in a bush with coin and throw a shield or heal every now an then.