How to win (Balance, huh?)

Step 1: Pick a tank, an ADC who does nothing but spam AA, or a champ like Xin, Yi, Annie and so on that has no skillshots to speak of.

Step 2: Click on people.

Step 3: Laugh as they instantly die before all your "skill" and "balance"

Step 4: Climb to challenger, and then go click people to death on the LC$ stage (seriously, what high-skill champs do you see there?)

Step 5: Win the game.

So, Riot, why can someone like Trundle build FULL TANK and triple my damage as Graves while I have 300 AD and a Lord Dominik's Regards? Why do champs with targeted abilities hit 3-4 times harder than any skillshot champs? Why are ADCs who do nothing but spam AA the highest source of damage in the game, despite being the easiest? Why does Zed, one of the safest champs in the game, have higher burst than a champion like Graves, who is BUILT FOR BURST, and has to go all-in to use it?

Please, do tell me how you can even begin to claim your game is balanced when the least effort yields the highest reward, in every way.