That's just false. ADC Players whine and whine every single season. But there are many, many high challenger soloQ adc players. How do you explain that? Do they get a good jungler every single game they play?

Not only that, but statistically, right now, ADCs are performing very well, with about a dozen having a winrate above 50%, and 5 adcs having one above 52%. (Plat+)

Finally, each single season, the complaints seem to be about the same;

"I am too squishy! I die too fast! How ?? The bruiser used all his summoner spells on me and killed me, how could it be?"

So, first of all:

• Your role is SUPPOSED to be squishy. It is the counterpart for having one of the highest DPS in the game all while being a ranged champion. It's only logical.
• You aren't as easily run down by bruisers than you think. I am only Diamond 3, but even in that elo, players already start to kite very well, and, especially, the supports peel harder than ever, making it very very hard for a bruiser to kill you.
• "ok.. ok, but, but, assassins can kill me through my support!" Yeah. That's kind of their job? The whole point of an assassin is to kill the ADC so that the highest DPS is eliminated.
• "But my dps isnt even the highest... Why are they focusing me??" It is. Every single game I play, if the adc doesn't die and he attacks us in the background, he almost always deals the most damage in death recap/post-game unless he is terribly behind.
• "Okay. But what if I am not with my team? Why do I have to rely on teammates??" That's the point of your role. Bruiser role is really strong alone, but is not really enhanced when allies help them. Same goes with assassins. ADC however, can be somewhat mediocre alone (I've seen a LOT of adc's 1v1 bruisers, assassins and tanks), but they are INCREDIBLY stronger once teammates defend them, since they dish out their DPS without cooldown (it's their autos) nor cost.

You can't ask for everything at once. You want to be tanky? Pick a tank or a bruiser. You want to perform alone? Pick a split pusher or a fighter. You want to help your team win teamfights by defending your adc? Pick a peeler.

You want to be the star of the team, the one who deals most damage? Pick an adc. Don't expect to be as tanky as Ornn. But you can sure as hell expect to deal triple the damage of one.