the frustration of playing adc in the lethality meta

I have mained adc since the first game i have played in this game, i have seen a lot of metas and crazy unbalances scripters cheaters... and even tho i made it out to diamond 4, but this is way too much to deal with, I really dont know why Riot decided to take this path, or maybe it was not a decision and the game it self took that direccion and they couldn't control it. But, I haven't felt so powerless in league than i feel in the current meta. I perform really good, sharpcalling, outplaying and kinda getting fed, until a 0/4 rengar/zed/kayn/talon/akali/yasuo/riven/fiora/khaziks/jayc/jarvan etc one shot me even with shields, and What do they have in commun?? Lethality, your team cant protect you and u cant even going well in the game protect yourself, this isa sad and frustrating, can be fun to see in videos but it has become a time that speaking from the adc prespective is frustrating, really. I really like the ideas they have like the new champions, like ornn, aswell as the remakes but they really need to fix the items/masteries, I am following the new runes masteries crafting thing and i feel like is going to be the 5 players thunderlord v2 like happened on the masteries... idk what else to say i just hope they keep doing things good and trying to reduce the damage output of the game because u cant play u spend more time watching the game from the death perspective than playing tf are less than 10 seconds this isn't wht they used to be the funny and cool ones