Yasou too powerful!

I'm sorry but when an enemy champ has a 50% attack speed debuff 150+ armor and an ult that prevents the knockup when timed right I really don't see how it is fair that Yasuo easily kills Malphite. Yet that was my last game. I believe every champ has weaknesses and strength but for the love of all that is fair and balance how is it that Yasuo is better then malphite at all stages of the game? I kept up in farm despite his poke and got my Sunfire cape and ninja tabi at the same time as he got the shiv and berserkers. The entire time I was against my tower as he out traded me every time despite having more sustain because of his passive shield which is far easier to get back up then malphites. We were even at this point in the game. 1 kill each. CS farm within 10 of each other. He used his knockup move I ulted it not getting knocked up and hitting him. Used W, E and Q AA then I'm dead.... go figure that one out. Give up? His stupid shield blocked a big chunk of my ult he lived long enough to knock me up later because he could dash around my minions 400 times he crit almost every hit if not every hit and this is with one item! Now Riot, I like balance as much as the next person but when a champ builds all Armor and hits Attack speed by 50% the melee adc whose DPS is Attack Speed based (even for one of his abilities!) should not win. Yasuo does not have a weakness unless he is ganked repeatably before his first item. That is not counter play nor a weakness that is over powered when another champ is required to stop him. Using Minions which normally work in your favor as they damage the enemy should not be an advantage. Yasuo too strong! Why does he get high AD ratios, high mobility, a shield, a wall that blocks all and double crit? He does not need double crit!!! Bah, I guess he just completely overwhelms all tank champs. Guess I'll go buy Vlad I hear he's fun in top.