Why are people complaining about Adc's

I understand that people don't like that all adc's have to do is auto attack. But lets be honest here. Adc's are the worst role to play at the moment. So say a gets fed and this happens all to often any assassin mid gets fed. It's the worst time in the world for the adc. The game then becomes what team can either kill the adc faster or the fed assassin. Also with champions like hecarim and Lee running around in the jg adc's are very susceptible to early ganks if they overpush. I again understand why people dont like adc's in general but as an adc main i think the only thing unhealthy about them is the fact that warlords/crit is super dumb and the fact that riot does like to make the game around adc's. I just want some more specific thoughts on why everyone all of a sudden hates them. Nothing has changed for adc's in almost a year besides what champions are meta.

R.I.P

Thanks -A boosted silver player