Bot lane carries were suppose to be able to do that. CARRY THE GAME. As where other roles were meant to help support that role. What this means as a jungler is I now cannot expect bot lane to do anything for me ever in games. I cant even remotely expect mid to even carry. Mid lane mages are a joke now. Top is the only lane were champions are remotely capable of coming back from behind. There is more wrong with this current state of the game than you are seeing. How long have you been playing? This new design team riot had integrated a few years ago is frustrating.
There are super broken items now like BANNER, STORMSERGE with DUSKBLADE, etc. And champs like XIN, XIN, XIN, XIN did I say XIN? Who are super strong in the jungle. Yes there is Graves, XIn, Trundle, to an extent Olaf, Kha, etc if played right. But now jungle is all about EARLY GAME AND CONTESTING EVERYTHING. You cant play a passive play style anymore. Which some people enjoy. Its super frustrating.
You are allowed to have an opinion. But I mean from the sound of it you don't play ranked and just kinda play the game on and off.