"It's very clear with a quick hover that no one likes Zed, we all agree he is a bit much right now, no one likes fighting yasuo, and we want more champs to be meta. Meta slaves make the game unplayable and annoying, and yet Riot looks at us and says "Go cry about it and buy more skins". Why?"
Riot does not listen to the Boards when it comes to Gameplay. Nobody wants to hear the amazing balancing ideas of Silver Crybabies who can't fight Zed or Yasuo and then proceed to whine and bitch on the Boards.
It's very clear with a quick hover that a lot of people like Zed. Once again, those aforementioned Silver Crybabies agree he is a bit much right now. Ask literally anyone decent at the game, and they'll say the opposite. Same with Yasuo-- although his powerspike is much more powerful than Zed's. Zed is NOT meta in any sense of the word (yet). He will be, in the coming patches, but he's not there yet. Riot looks at us and says: "Go cry about it and buy more skins for anyone but Zed", considering that Zed only has two purchasable skins over the course of what, 6 years, now?
Your frustration is misplaced. Don't bitch at Riot because you lack the ability to fight Zed/Yasuo effectively. Bitch at yourself and try to improve your laning phases and picks. Improve your micro and macro.