What do we do about toxic players in solo Queue?

When you join a solo queue and you play every class there is almost and people purposely target you, the healer does not heal you cause maybe you killed him in a rbg last season or whatever so he turns all them on you who will people believe a ret paladin or a disc priest? Obviously the Ret Pal has nobody on his side cause hes a ret paladin I also would like to bring up how they bash ret paladins? I play more then only ret paladin we can meet. Any class. I’m sick of the harassment and in-game taunting and weird stuff its toxic like I’m going to leave the solo queue cause of that and take a week off.