Preach! We all know ADCs get just as much shit from their supports, and if anything it's usually supports fucking up that screws botlane over.
Not going for an engage? Fine, at least they are not getting anything more than we do. But supports not doing anything when someone makes a mistake, so therefore there's no CC/damage to patch it up? I feel ya pain. Hell, if anything, whenever I make the stupidest mistakes, botlane is nearly guaranteed over. Whenever my ADC makes mistakes, at least I have CC to make shit less painful, and that he can return to his attack/retreat mode and hopefully no significant advantage is given to the enemy laners.
One note, sometimes it's not all bad to give some of the kill shares to supports as early kill gold allow them to rush sightstones and help you survive in lane better. Though if you already have damage items and somehow still aren't taking kills, that's more on you. If I give you perfect conditions for you to farm and/or trade and you're not taking that advantage, that's also on you. Yes, we know you NEED your teammates to do your job for peels, but that means you have to return the favor for damage so WE can do our jobs.
No, this doesn't mean either of us has to submit to one another, but that doesn't mean one side is always at fault and that the other is never at fault. Since a big part of botlane success is measured by how well two people can work together, which also means both of us have to remain respectful instead of bitching and whining over shit neither of us can't do.
Yeah, this shit sounds so generic, but still a good reminder for all.