True Damage needs to be toned down, and Tanks are useless

All the tank threads should be an eye opener to what is happening to an entire class of champions. The power ramp of dps and true damage outscales tank ramp up to the point that tanks become useless upon 1 -2 item of a damage dealer. Tanks naturally make less gold throughout the game, and yet their items are very expensive. As a result, not only do tanks not get the chance to build defensive items in time, they are useless to stop all the 100 sources of damage available compared to defense power. I should not have a tank blow up in 2 seconds with 200 arm and 200 mr with 3k hp with steroid that increases it at low health, which doesnt matter cause true damage negates all the purpose of being a tank.

Most games, I feel like I'm wasting gold on tank items.