Should I quit League?

Im thinking about quitting League, I was a positive attitude player starting off, but when I played PvP that slowly sunk, very slowly, but surely, soon enough I was raging at my teammates, its like an infection. The problem is, I don't rage at them because of trolling or toxicity.. I rage at them because of how unbelievably stupid they play. I ward, I ward all day long when I am a support. Sightstone is my first purchase, and I end up using all of them every time I'm out in the field. When i mid, the 2 mid bushes aren't what I ward, I ward the jungle first because I've played mid enough to know counters of all the mids, and even non counters(example: Katarina and Vel'Koz, Kat jumps behind Vel while Vel is ulting, usually results in the Vel Counter, but I use my E as soon as that ult starts). The randoms I play with are literally so stupid, that half the time, it DOES make me want to click the exit game button, but I don't. I've played Ranked S4 and S5, ended up bronze, S4 and S5, and ive come to the conclusion that it isn't worth the skin. It's not even worth playing, Summer or not Summer. But here are the reasons why I think this(Keep in mind, most of these people were actually nice people):

1. Once had a Riven tell me map awareness doesn't matter til teamfights.
2. Had a Kennen say - "I didn't call mia on him because he was missing."
3. Max of 4 wards placed on the map at any given time, 3 stealth, 1 Pink, still get yelled at for not warding by our top and jungle even though I'm a support and they died in the top jungle.
4. Recognition of Dragon importance, there is none, there isn't even a proper tutorial explaining it.
5. Nobody stops chasing or getting baited.
6. There is no IQ Test for this game when you click Ranked.
7. There is no Champion play limit when you play Ranked(Meaning, I should have to play a Champion 2 times in a bot game. Then 8 times in Normals before I can click Ranked.)
8. The laser turrets are absolute garbage, I'd rather die defending the inhib itself, than die defending the turret, that's how bad they are.

Lets go into detail about number 8!

Teamfight under laser turret, tank goes in, nobody on the enemy team focuses the turret cause its so weak and it ramps up way too slowly, that they focus the champions instead.

Inhibitor gives all waves a buff, as well as the inhibitor lane super minions, so the inhibitor provides a nice distraction from some of their damage, thus letting us kill them while they try to take it out.

tl'dr = I shouldn't still be playing this game.