Actually, yes.
Not sure if anyone's ever told you this, but "carry" is in the name there; ADC = Attack Damage Carry. They are there, essentially, to carry. Plus, it's everyone's job to do damage, it's not exclusive to the ADC. And I don't recall gold coming up, but since you brought it up, I might as well address it; That's another thing Supports can do - Tank Supports can buy Relic Shield and help their ADC get gold.
And everybody needs a good laning phase to do what they need to do, it's not restricted to the ADC. And saying that the whole "level 3 krugs" thing is the reason why junglers are ganking bottom lane frequently is kind of stupid, because, if you haven't looked at the map yet, there's krugs up on the other side of the map, too! By top lane. So, that argument, "junglers camp bottom lane because of level 3 krugs", is invalid.
People have been camping bottom lane for a while now, it's nothing new. It's been a thing since before the Assassin update, since the Dragons give those boosts in power that the team needs, and they know that if they can stunt the enemy ADC, they have a better shot at winning. And from my guess is, they also know that you're an easy target.
ADC's have to deal with a lot of stuff from the Support role - that's nothing new either. Joke Supports are uncommon, there's always been Supports who generally kinda suck at the role, and there have also been people who queued up as Fill specifically and got dropped into the Support role. People "don't realize" this because they have a long while ago, it's nothing new. As for ADC's being nerfed every patch, it sure as hell doesn't stop other people from playing it, but that's probably because they know how to play the game, and know how to deal with changes in one way or another.
And, what you don't seem to realize is, again; nothing you're saying is new. People have been playing Mages as Supports for a while now, too, even before the MYMU - Veigar, Brand, Vel'Koz, Karma, Lux, they're all common hard AP picks for the Support role. Wanna know why? Because they do a lot of damage, can compensate for bad ADC's (see; ViiLAiN, Umbral Regent) and they can provide a lot of utility - namely, Crowd Control.
And again, it's not just the Support. Bottom Lane is two people, both of whom have to do well or face a loss. This includes the ADC. A Support can be AWESOME and the ADC can SUCK ON ICE, and it'd still have a stagnation or a loss effect on the match. I don't have much to say on the Warding part, since Warding is, like doing damage, and succeeding in laning phase, EVERYONE'S JOB, but I digress.
Lastly; don't just say "junglers camp ur bot lane pls i dont like playing adc", think a little bit smarter, and in your next game(s), ping for assistance. By which I mean, ping once or twice, don't pingspam, and if you're walking back up to lane, use your keyboard, and type out a request. More often than not, even if you're losing, ASKING your teammates for help can get you it.
Now, can someone with the Primetime Draven skin give me one of their mic-axes, 'cause I need something to drop.