ADCs do not contribute to game victories

Ever since the ADC "rework," it has felt like the adc as a role has to put in 1000x more work than any other role to even be relevant, much less carry. Each champ on the screen should be able feel like they contribute to a team, but instead, you have situations like this:

late game 6 item build adc hits enemy champion 7 times their hp goes to half enemy champion hits ally twice and kills them adc has to run because enemy champ is tankier and out damages them

Champions that are made to scale and be relevant only in the late game are not irrelevant all game. Riot seriously needs to fix this or its going to kill the game. It already has started to.