It's not ADCs, it's you
Don't care if this gets downvoted. Every time I op.gg the op of a 'nerf ADC' post I see they're a silver top laner, assassin or support.
Guess what. If you got one-shot by an ADC it's your own fault. If you're any of the roles mentioned above then you have ample CC, mobility and/or tankiness to escape or even outplay in some cases. You died because you're bad and either got stomped in lane and deserved to be one shot, or you didn't react fast enough and/or missed/misused all of your abilities. It's not the game, it's you.
The only champion I'll relent on is Twitch. He is definitely over-tuned and needs something to balance him, but he's not completely broken to the point where there's no counterplay. Players that adapt can overcome the small extra advantage he brings.
The whining about ADCs on these boards is cartoonish at this point. There's no semblance of reality left. No one cares about your ramp-up damage ADC redesign, or making it so all marksman can only use 75% AD on all items, Riot least of all. Stop trying to justify your stubbornness to improve at the game by blaming an entire class of champions. It's not ADCs, it's you.

has no counterplay
has no counterplay.
and many, many more have no counterplay since they can point and click damage/CC onto you right? Thats your logic correct?
"All ADCs do is right click. No skill."
"Ikr? I'd like to see them land shurkens the same width as their body..."
"Wtf? They
'd my wither and I couldn't kill them with 4 Qs? I have 59 stacks!!"
"They flashed out of the second hit of my blades so I ulted and they took a thresh lantern to safety. This shit is broken."
. If you think otherwise then you need to learn more about the game and how to teamfight.