Riot, Please.

Riot, please tell me why tank items are dominant in the game. Tell me why someone who builds tank items does more damage than damage dealers, such as adcs and mids. Tell me why they take more damage than anyone else in the game and do more damage than anyone else in the game. This game was once a game I loved, but now, the reputation of the game is being tarnished in replace of tanks, including tank items. I can't be asked to deal with tank items completely ruining every game that I play. Please make tank items what they used to be... Tank items. Not damage dealing items, tanks items.

Edit: Specifications of tank items, not tanks themselves.