If you're playing Ahri you can R around his Wall and shit on him. It's possible. You just don't understand the game.
Btw yasuo is designed to beat skillshot reliant champs. You're not supposed to beat him by being braindead.
You can r around his wall, and he can go through it with no problems. Because it blocks from both directions, not one.
And you can't really properly beat him as a skillshot reliant champ unless the yasuo is bad. He dictates how the lane goes because he is the one with the windwall.
Would be like me saying "Zed is broken, he has every tool to make adcs useless"
Uh yeah, that's his design and role ?
Nice out of context quote, and no, no other champion can make an entire role of champions useless. Assasins such as zed have an easier time to kill squishies, but they cannot make them entirely useless with 1 ability.
Gonna ignore about the rank part because that is not even a good point, especially since your statement about supports show how much you know...
This might be true if you're playing Gnar or something. But no shit if you pick skilshot reliant chcamp into him you will struggle unless you outplay him. THAT'S HIS DESIGN LMAO. He's suppose to counter these champs. He gets shit on by any bruiser/tank/assassin. He's a melee adc.
The point is is that you cant outplay him, he can only outplay himself, because he is the one in control of his windwall. Not you, not your toplaner, not your jungler, it is him who controls the wall.
Countering is not the same as making someone useless if played well.
And no he does not get shit on by bruisers, tanks or assasins, only specific champions in those categories counter him. But every champ has counters (Even pre nerf kassadin) it ddoesnt make them balanced or not frustrating.
His kit has tools to fuck up all of those roles. He beats bruisers with mobility, tanks with his sutained damage paired with his ultimate and assasins with his passive paired with his windwall (Many assasins have projectiles actually) and burst damage.