I have yet to hate a champ to the point of "EVERYTHING ABOUT THIS PERSON IS CANCER" like you do. Do you know why? Because I try to learn from my mistakes. I make sure to learn about the problem champs and figure out ways to out play them. Yasuo's projectile blocking shield? I walk around it, though it, or bait it out via making a "tell" whenever I try to land a skillshot(walk all the way around the minion wave or somesuch) and then take advantage of the 26-18 second cooldown to attack. Instead of fighting around my minion wave, I fight around his. Small, simple things that you need to learn. Either that or you just need to learn to chill because this is rather sad.
Here let me just hit him with anything...oh wait wall.
Lets ignore how the wall only blocks projectiles, shall we. That flimsy thing does not block a Lux laser, a Naught ult, Azir's anything, Vel'koz's aa, w,e,r(and his q can be shot around to boot), Illoai's anything but the e, Victor's various lasers, Swains w and q laser(the bird cannot be cast through it, but the bird can hit things on the other side) and much more!
And I haven't even scratched the surface of this.
P.s. Why do none of your arguments actually further your point? You kind of just rephrase everything.