Picking a aquishy AP carry as a support should be reportable.
It's just cancer the player is never there to play the support role, they are literally players who cant play a solo lane who then use the bot lane to play out there "I carry the team" dreams. They never do any real dmg (end of game stats will look good because they get ignored and deal out alot of tiny little insignificant poke dmg all game, they never peel (too buisy doing dmg), they never ward (bro i need to do dmg), and they hope and pray the adc dies over and over so they can finally get farm those minions and build some dmg!
It is literally to most cancerous aspect of this game, the support player who never attempts to support and it should be punishable in ranked, but not normals.