Why must low elo require you to play a hyper carry (rant)?

There's absolutely no team work within this elo and it is starting to become frustrating. I absolutely hate playing champions that can be played by any dumb ass and be rewarded highly for it, but now that seems to be all that I can do since this elo keeps putting me with team mates who keep engaging in bad fights with the ADC for some reason always going right in the front lines with me (usually the support) always having to peel for the guy while the rest of my time focuses on a tanky Mundo.

And forget about comebacks, Season 6 fucked that up entirely with the overly large death timers, the weakest towers being those near the inhibitor and nexus, and super minions being disgustingly powerful.

No one really knows how to split push either without getting caught and if I try to split push (usually with a champion that can) these guys get their ass destroyed even harder.

It is infuriating and makes the whole "ELO hell" experience start to come to life,

Occasionally I'll get players that know what they're doing. Know when to engage, know where to ward, know that it's objectives > kills.

But probably 80% of the time, it's the incompetent players I get.

I absolutely hate how these match ups are placed.