Lethality is still busted! x.x

Ok, so i know that lethality is totally supposed to reallyy help assassins do more within the game. But now, it was and is still too strong!! I went vayne one game expecting the scale the assassins (zed and talon) out late game, but this was not the case. I could not even kite talon!! Likewise, I'm not even sure if a GA would have helped. Even when i go mid i can win my lane, but then once they get just a few of the lethality items they become unbearable (even with zhonyas)! Pleaseeeee nerf lethality riot. It is just wayyy too strong at the moment and it's making the game unfair unless you are playing an AD assassin or MF or Varus, and i HATE being a meta slave.